dhātu: what the term means and how it is translated
dhātu धातु is an Ayurvedic technical term. It is rendered into English in 9 different ways, which is the reason this page exists: the renderings do not agree, and the difference between them changes what the term is taken to mean.
| Transliteration | dhātu |
|---|---|
| Devanagari | धातु |
| Also written | dhatu, dhaatu, dhātuḥ, sharira dhatu |
| Category, as gathered | dhatu |
| Grouped here under | Body: tissues, wastes and channels |
| Classical citations | 5 |
| Citations checked | 2026-10-08 |
How it is translated, and whether the translation holds
Each rendering is given with the source that uses it. The assessment is ours.
Fundamental structural component
WHO International Standard Terminologies on Ayurveda · ITA-2.2.1 (section 2.2 Fundamental structural components) · standard
WHO's chosen English headword. Deliberately avoids 'tissue'. The same document separately assigns the headword 'Metal' to dhātuḥ at ITA-7.2.5.1 and cross-notes the ambiguity in both entries.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
Metal
WHO International Standard Terminologies on Ayurveda · ITA-7.2.5.1 (7.2.5 List of important metals used for medicinal purposes) · standard
Same Sanskrit headword, different domain. WHO's own gloss there reads 'Group of metallic ingredients for medicinal usage. The Sanskrit term dhatu also denotes fundamental structural components of the body.' A lexicon must carry both senses.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
upholding ingredients
Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913) · Sutrasthana, Lesson XXVIII; also translator's footnote at Sutrasthana Lesson XXVII · translation
Kaviratna's most literal rendering. He is not consistent: 'constituent elements of the body', 'constituent ingredients of the body' and bare 'dhatus' all appear for the same word within the same volume.
constituent elements of the body
Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913) · Vimanasthana, Lesson VIII · translation
One of at least four renderings Kaviratna uses for dhātu.
fundamental principles of the body
Sushruta Samhita, tr. Kunja Lal Bhishagratna (1907-1916) · Sutrasthana ch. XIV and XV · translation
Bhishagratna's standing rendering. Also uses 'root principles', 'organic principle' and 'bodily principle' for the same term.
root principles
Sushruta Samhita, tr. Kunja Lal Bhishagratna (1907-1916) · Sutrasthana ch. XIV (rendering the passage corresponding to Su.Su.14.20) · translation
Used precisely where the mula gives the etymology (śarīradhāraṇāt), so 'root' here carries the sense 'that which holds'.
anything that holds or supports the body
Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913), translator's footnote · Footnote to Sutrasthana Lesson XXVIII · translation
Kaviratna's explicit gloss of the word's literal sense, offered in a footnote rather than in the running text. Closest thing in the public-domain corpus to a definition.
tissue
Modern Ayurvedic textbook and journal usage · e.g. PMID 26664231 title, 'theory of tissues formation and differentiation' · textbook · our paraphrase of the source, not its words
By far the commonest modern rendering and the one WHO ISTA declined to adopt. Convenient but imports a histological meaning the classical term does not carry.
bodily element / body constituent
Common English-language secondary literature · textbook · our paraphrase of the source, not its words
Avoids the histology problem but collides with mahābhūta, which is also routinely Englished as 'element'.
The classical passages
Each citation gives its address so a reader can check it in a printed edition, our account of what the passage establishes, and the result of reading it against its source.
Sushruta SamhitaSutrasthana 14 (Shonita-Varnaniya):corresponds to mula verse 20; Bhishagratna's Sutrasthana carries no verse numbers · checked against the source
The abovesaid principles (of Rasa, blood etc.) are called the root principles (Dhtftus), inasmuch as they maintain the integrity of the human organism 'and guard against its speedy dissolution).
The text's own etymological definition: the constituents are called dhātu because they hold the body together. OCR has mangled 'Dhatus' to 'Dhtftus' and dropped an opening parenthesis; nothing else is altered.
Sushruta Samhita (Sanskrit mula)Sutrasthana 14:20 · checked against the source
त एते शरीरधारणाद्धातव इत्युच्यन्ते ॥२०॥
The Sanskrit behind the previous entry, with its verse number, retrieved independently of the English translation. Fixes the etymology as śarīra-dhāraṇāt, 'from sustaining the body', and anchors the Bhishagratna passage to Su.Su.14.20.
Charaka SamhitaSutrasthana 28 (Lesson XXVIII, on diverse kinds of food and drink):not asserted; see gatheringNotes on Kaviratna's OCR verse markers · checked against the source
From, however, that juice which springs from food grow the fluids, blood, flesh, fat, bones, marrow, vital seed, and that which has been called Ojas ; as also those substances that are requisite for the functions of the five senses. These latter are called the essence of the Dhatus.
That Charaka's enumeration at this point runs to EIGHT and ends in ojas, not seven. It also names a further category, the 'essence of the Dhatus' (dhātu-prasāda), which supplies the sense organs. Directly complicates the standard 'seven dhatus' formula.
Charaka SamhitaSutrasthana 28:not asserted · checked against the source
From that, (viz., the food thus taken), arises a juice which is called Aharaprasdda or food-substance, as also a Refuse called dregs or dross.
The prasāda/kiṭṭa split at the level of food, upstream of any dhātu. OCR renders āhāraprasāda as 'Aharaprasdda'.
Charaka SamhitaChikitsasthana 15 (Treatment of Diseases of the Grahani):15 · checked against the source
They who sustain the body, viz., the 'dhatus' (i. e., 'Rasa' or juice, blood, flesh, adeps, marrow, bones, and vital seed), are cooked by their seven respective fires. This process of cooking which they undergo is of two kinds in consequence of the 'Kitta' (refuse) and the 'Prasada' (pure substance) Which results from it.
The seven-fire (dhātvagni) model and the prasāda/kiṭṭa split. Note that Kaviratna's own parenthetical enumeration here puts adeps and marrow BEFORE bones, contradicting the chain he translates one verse later.
The concept record for this term
A term entry answers what the word means. It does not answer whether the thing the word names is settled, and often it is not. That is what the concept record is for: it sets out the questions on which the sources disagree about this term, with each position attributed, and states what is not established.
Not to be confused with
- doṣa
- Doṣa are the regulatory functional factors that vitiate; dhātu are what gets vitiated. Sushruta's own framing at Sutrasthana 15 separates doṣa, dhātu and mala as three categories of bodily constituent. Rendering both as 'element' or both as 'constituent' erases the distinction the texts build the whole pathology on.
- mala
- Mala are the excretory fraction (kiṭṭa) thrown off at each stage of dhātu formation. Kaviratna, however, translates Charaka Sutrasthana 28 as calling the malas themselves 'Dhatus' ('Of the Dhatus of both classes, viz, those called Malas and those called Prasadas'), so the boundary is not as clean in the source as in modern teaching.
- dhātu (Rasashastra / mineral sense)
- The same word names the medicinal metals. WHO ISTA carries it twice with different English headwords: 'Fundamental structural component' (ITA-2.2.1) and 'Metal' (ITA-7.2.5.1). An index built on the Sanskrit alone will merge two unrelated entries.
- dhātu (Sanskrit grammar)
- In Paninian grammar dhātu is a verbal root. Su.Su.14.13 actually uses the word in this grammatical sense in the same chapter that defines the bodily dhātu ('तत्र रस गतौ धातुः'), so the two senses sit adjacent in the source text.
- upadhātu
- Upadhātu are produced from dhātu but are held not to transform further into a following tissue. They are not members of the seven.
- ojas
- Standardly the essence (sāra) of all seven, not an eighth member. But Charaka Sutrasthana 28 as translated by Kaviratna enumerates ojas as the eighth item in the list, and Bhishagratna's footnote to Su.Su.14 records that 'certain authorities hold albumen (protoplasmic matter) to be the eighth or the culminating principle of the body'. The disagreement is in the sources, not only in the secondary literature.
- mahābhūta
- The five great elements. Both are routinely Englished as 'element'; dhātu are formed from food by digestion, mahābhūta are ontological constituents of all matter.
Renderings that do not hold
- tissue. Imports a histological category that the classical term does not carry. Rasa is a fluid, ojas is sometimes counted, and the dhātus are defined functionally (by what they hold and what they produce) rather than by cellular architecture. WHO ISTA specifically avoided 'tissue' in favour of 'fundamental structural component'.
- humour. Belongs to doṣa, and is contested even there. Applying it to dhātu compounds the error. Note that Bhishagratna's chapter title rendering, 'the humoral constituents of the body and excrements', does blur exactly this line.
- element. Collides with mahābhūta, which most translators also call 'element'. Kaviratna uses 'constituent elements of the body' for dhātu and 'the five material substances' for mahābhūta, but not consistently.
- metal. Correct only in the Rasashastra sense (WHO ISTA ITA-7.2.5.1). Applied to the bodily dhātu it is simply the wrong lemma.
- the seven tissues. Fixes the count at seven when two of the three public-domain passages retrieved here list eight, the eighth being ojas. The number is treated as settled in modern teaching and is not settled in the source texts.
Open questions
Recorded rather than resolved. Each one is something this entry cannot currently settle.
- Whether ojas is an eighth dhātu or the sāra of the seven is stated both ways inside the public-domain translations of the two samhitas; no retrieved source resolves it.
- Kaviratna's verse markers in the OCR do not align with the numbering used by carakasamhitaonline (see gatheringNotes). A Sanskrit Charaka with verse numbers is needed before any Charaka verse number in this record set can be called verified.
- Whether Charaka's 'essence of the Dhatus' (dhātu-prasāda) supplying the sense organs is a distinct technical category or a commentarial reading of Kaviratna's own could not be established from the retrieved text alone.
- No retrieved source gives a criterion by which a proposed English rendering of dhātu could be judged adequate; the choice is currently made by convention.
How to cite this entry
Age Ayurveda Nighantu, dhātu
, https://nighantu.ageayurveda.com/lexicon/dhatu/, CC BY 4.0.
The whole lexicon is downloadable from the index.
Machine-readable source: Markdown.
Data exported 2026-10-08.
Educational reference only. A term entry explains what a word means and how it has been translated. Nothing here is advice, and nothing here describes how any condition should be treated.