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1

deltoid

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noun del·toid \ˈdel-ˌtȯid\

Simple Definition of deltoid

  • : a large muscle of the shoulder

Full Definition of deltoid

  1. :  a large triangular muscle that covers the shoulder joint and serves to raise the arm laterally

Origin of deltoid

New Latin deltoides, from Greek deltoeidēs shaped like a delta, from delta


First Known Use: circa 1681


2

deltoid

adjective del·toid

Definition of deltoid

  1. 1 :  having a triangular shape <a deltoid leaf> — see leaf illustration

  2. 2 :  relating to, associated with, or supplying the deltoid



Circa 1753

First Known Use of deltoid

circa 1753


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