(anatomy) A triangular muscle of the larynx that is attached to the cricoid and thyroid cartilages and is the principal tensor of the vocal cords.

(anatomy) A flat muscle on each side that form the outer layer of the lateral walls of the abdomen, that have aponeuroses extending medially to ensheathe the rectus muscles and fusing in the midventral line in the linea alba, and that act to compress the abdominal contents and to assist in expelling the contents of various visceral organs (as in urination, defecation, parturition, and expiration).

(anatomy) A flat muscle situated under the external oblique muscle in the lateral and ventral part of the abdominal wall, that have aponeuroses extending medially to ensheathe the rectus muscles and fusing in the midventral line in the linea alba, and that act to compress the abdominal contents and to assist in expelling the contents of various visceral organs (as in urination, defecation, parturition, and expiration).

(anatomy) Any of the six small voluntary muscles that pass between the eyeball and the orbit and control the movement and stabilization of the eyeball in relation to the orbit.

(anatomy) A long thin extraocular muscle that arises just above the margin of the optic foramen, is inserted on the upper part of the eyeball, and moves the eye downward and laterally.

(anatomy) A short extraocular muscle that arises from the orbital surface of the maxilla, is inserted slightly in front of and below the superior oblique muscle, and moves the eye upward and laterally.

(poker) Describing a game or table at which the players are committed to move to another game if a seat opens up in that game.

(poker) A must-move game or table.

plural of must-move

(anatomy) A smooth muscle helping to raise the upper eyelid.