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deltoid

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈdɛltɔɪd/US:USA pronunciation: respellingUSA pronunciation: respelling(del′toid)

del•toid (del′toid),USA pronunciation n.

[Anat.]a large, triangular muscle covering the joint of the shoulder, the action of which raises the arm away from the side of the body.

adj.

Anatomypertaining to or involving the deltoid.
Also, deltoidal. in the shape of a Greek capital delta (Δ);
triangular.

Greek deltoeidé̄s delta-shaped, equivalent. to délt(a) delta + -oeidēs -oid
1675–85

Collins Concise English Dictionary © HarperCollins Publishers::

deltoid /ˈdɛltɔɪd/ n

the thick muscle forming the rounded contour of the outer edge of the shoulder and acting to raise the arm

Etymology: 18th Century: from Greek deltoeidēs triangular, from delta

'deltoid' also found in these entries (note: many are not synonyms or translations):

deltoidal - delts

In Lists: Medical vocabulary, more...

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deltoid