Adjacent Words

Deltoid definitions

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Webster's 1828 Dictionary

DELTOID, n.
1. Triangular; an epithet applied to a muscle of the shoulder which moves the arm forwards, upwards and backwards.
2. In botany, shaped somewhat like a delta or rhomb, having four angles, of which the lateral ones are less distant from the base than the others; as a deltoid leaf.
Trowel-shaped, having three angles, of which the terminal one is much further from the base than the lateral ones.

WordNet (r) 3.0 (2005)

adj
1: triangular or suggesting a capital delta, with a point at the apex n
1: a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm [syn: deltoid, deltoid muscle, musculus deltoideus]

Merriam Webster's

I. noun Etymology: New Latin deltoides, from Greek deltoeid?s shaped like a delta, from delta Date: circa 1681 a large triangular muscle that covers the shoulder joint and serves to raise the arm laterally II. adjective Date: circa 1753 1. having a triangular shape <a deltoid leaf> — see leaf illustration 2. relating to, associated with, or supplying the deltoid

Oxford Reference Dictionary

adj. & n. --adj. triangular; like a river delta. --n. (in full deltoid muscle) a thick triangular muscle covering the shoulder joint and used for raising the arm away from the body. Etymology: F delto{iuml}de or mod.L deltoides f. Gk deltoeides (as DELTA, -OID)

Webster's 1913 Dictionary

Deltoid Del"toid, a. [Gr. deltoeidh`s delta- shaped; de`lta the name of the letter [Delta] + e'i^dos form: cf. F. delto["i]de. See Delta.] Shaped like the Greek [Delta] (delta); delta-shaped; triangular. Deltoid leaf (Bot.), a leaf in the form of a triangle with the stem inserted at the middle of the base. Deltoid muscle (Anat.), a triangular muscle in the shoulder which serves to move the arm directly upward.

Moby Thesaurus

centrifugal, cuneate, cuneated, cuneiform, delta-shaped, deltalike, divaricate, divaricating, divergent, diverging, fan-shape, fan-shaped, fanlike, fanned, fanning, flabelliform, flared, flaring, open, outspread, outstretched, oxygonal, palmate, palmated, patulous, splay, splayed, splaying, spraddled, spraddling, sprangled, sprangling, sprawling, sprawly, spread, spreading, stretched-out, three, three-cornered, three-dimensional, three-footed, three-in-one, three-pronged, three-sided, triadic, trial, triangular, triangulate, triarch, trichotomous, tricorn, tricornered, tricuspid, trident, tridental, trifid, triflorate, triflorous, trifurcate, trigonal, trigonoid, trigrammatic, trihedral, trilateral, trimerous, trinal, trine, triparted, tripartite, triple, triplex, tripodic, triquetral, triquetrous, trisected, triune, unfolded, wide-open, widespread