Word.ws English Dictionary

deltoid

UK/ˈdɛɫtɔɪd/

deltoid noun: the deltoid muscle, a triangular muscle on the human shoulder.

deltoid: the deltoid muscle, a triangular muscle on the human shoulder
Image: sv:Användare:Chrizz, CC BY-SA 3.0, via Wikimedia Commons

Noun

deltoid (plural deltoids)

  1. The deltoid muscle, a triangular muscle on the human shoulder.
    Synonyms:
    delt
  2. The deltoid ligament, a triangular ligament on the human ankle.
  3. A kite (quadrilateral having two pairs of edges of equal length, the edges of each pair touching each other at one end).
  4. A deltoid curve (hypocycloid with three cusps).

Adjective

deltoid (not comparable)

  1. In the shape of the uppercase Greek letter delta (Δ); triangular.
    1. Of a triangular or roughly triangular shape and attached to the stem via the side.
  2. Of or pertaining to the deltoid muscle.

deltoid meaning in Tamil and Thai

deltoid in Tamil

கைஉயர்த்தித் தசை, டெல்ட்டாய்டு, தோள் நிமிர்த்தித்தசை, பிரமிடு அமைப்பு

deltoid in Thai

kite
สี่เหลี่ยมรูปว่าว sìi-lìiam-rûup-wâo

Synonyms of deltoid

Forms of deltoid

pluraldeltoids

Origin of deltoid

From Latin deltoideus, which was in turn from Ancient Greek adjective δελτοειδής (deltoeidḗs). See also: δέλτα (délta), the fourth letter of the Greek alphabet.

Words formed from deltoid

Phrases with deltoid

Questions about deltoid

What does deltoid mean?
Deltoid means the deltoid muscle, a triangular muscle on the human shoulder.
What is deltoid in Tamil?
Deltoid in Tamil is கைஉயர்த்தித் தசை, டெல்ட்டாய்டு, தோள் நிமிர்த்தித்தசை. See Deltoid meaning in Tamil.
What part of speech is deltoid?
Deltoid can be a noun or an adjective.
How do you pronounce deltoid?
Deltoid is pronounced /ˈdɛɫtɔɪd/ (UK).
What is the plural of deltoid?
The plural of deltoid is deltoids.

Words near deltoid in the dictionary

  1. deltofolin
  2. deltohedra
  3. deltohedral
  4. deltohedron
  5. deltohedrons
  6. deltoid
  7. deltoid curve
  8. deltoid curves
  9. deltoid muscle
  10. deltoid muscles
  11. deltoidal

Source and license

Adapted from Wiktionary: deltoid (page history and authors); deltoid (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-deltoid.wav.

Cite this entry: “deltoid.” Word.ws, https://word.ws/deltoid. Based on Wiktionary, CC BY-SA 4.0.