Deltoid

//ˈdɛɫtɔɪd// adj, noun

Definitions

Adjective
  1. 1
    In the shape of the uppercase Greek letter delta (Δ); triangular. not-comparable
  2. 2
    In the shape of the uppercase Greek letter delta (Δ); triangular.; Of a triangular or roughly triangular shape and attached to the stem via the side. not-comparable
  3. 3
    Of or pertaining to the deltoid muscle. not-comparable
Adjective
  1. 1
    triangular or suggesting a capital delta, with a point at the apex wordnet
Noun
  1. 1
    The deltoid muscle, a triangular muscle on the human shoulder.
  2. 2
    a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm wordnet
  3. 3
    The deltoid ligament, a triangular ligament on the human ankle.
  4. 4
    A kite (quadrilateral having two pairs of edges of equal length, the edges of each pair touching each other at one end).
  5. 5
    A deltoid curve (hypocycloid with three cusps).

Etymology

Etymology 1

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

Etymology 2

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

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