deltoid

[ del-toid ]

See synonyms for deltoid on Thesaurus.com

noun

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

adjective

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

Origin of deltoid

1675–85; <Greek deltoeidḗs delta-shaped, equivalent to délt(a) delta + -oeidēs-oid

Other words from deltoid

sub·del·toid, adjective

Words Nearby deltoid

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use deltoid in a sentence

The nose is also a very different environment than the deltoid muscle, where shots are typically given.
Nasal Vaccines Could Help Stop COVID-19 From Spreading—If Scientists Can Get Them Right | Jamie Ducharme | February 15, 2022 | Time
This best watering can for hanging baskets, the Homarden holds 40 ounces of water, which won’t tax your deltoid muscles as you try to reach up to a hanging basket.
The best watering cans to keep your plants thriving all year round | Sarah Horaczek | October 14, 2021 | Popular-Science
That could increase with teammate Michael Thomas out indefinitely with a torn deltoid and other injured ligaments in his ankle.
Fantasy Football beginner’s guide: The best draft picks for Rounds 1-3 | Neil Greenberg | August 26, 2021 | Washington Post
A variety (danica) with stalked, deltoid leaves and an oval veiny pod, is plentiful in some places.
The Sea Shore | William S. Furneaux
The beautiful creature who was incredulous concerning the diaphragm suggested that he also had hold of the deltoid.
Out of the Hurly-Burly | Charles Heber Clark

But the others scornfully suggested that the deltoid was a muscle; they knew, because they had dissected one that very morning.
Out of the Hurly-Burly | Charles Heber Clark
The leaves are entire, lobed or toothed, often more or less deltoid or triangular in shape.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 | Various
As she stood, turned sideways to him, one hand on her hip, the deltoid muscle was at once contracted and foreshortened.
Vandover and the Brute | Frank Norris

British Dictionary definitions for deltoid

deltoid

/ (ˈdɛltɔɪd) /

noun

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

adjective

shaped like a Greek capital delta, Δ; triangular

Origin of deltoid

C18: from Greek deltoeidēs triangular, from delta

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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