(sports) To strive to the limits of one's capacity; to give one's all when playing a game.

(organic chemistry) A particular paullone, 9-bromo-7,12-dihydro-indolo [3,2-d] [1]benzazepin-6(5H)-one, that is an inhibitor of several cyclin-dependent kinases

(art) The use of letters and other text characters to form a picture.

plural of ecklein