deltoid
deltoid Lexical Profile
deltoid Game Scores & Validity
• noun
A large, thick, triangular muscle covering the shoulder joint that serves to raise and rotate the arm laterally away from the body.
"Overhead presses and lateral raises are effective exercises for strengthening the deltoids."
In geometry, a non-convex plane figure with three cusps formed by a point on the circumference of a circle rolling inside another circle of three times its radius; also, a convex kite-shaped quadrilateral with two pairs of adjacent equal sides.
"In advanced geometry class, the students calculated the area enclosed by a three-cusped deltoid curve."
• adjective
Relating to or involving the deltoid muscle of the shoulder.
"The nurse administered the vaccine via an intramuscular injection into the patient's deltoid region."
Triangular in shape, resembling the uppercase Greek letter delta (Δ), especially describing botanical leaves or anatomical structures.
"The cottonwood tree is easily identified in summer by its glossy, deltoid leaves that flutter in the slightest breeze."
• Rhymes for deltoid
Word Origin & Etymology
Borrowed from French deltoïde or Modern Latin deltoides, from Ancient Greek deltoeidēs ('delta-shaped'), formed from the uppercase Greek letter delta (Δ) and -eidēs ('resembling').