a forked support; a crotch.-a time note, with a stem, having one fourth the value of a semibreve, one half that of a minim, and twice that of a quaver; a quarter note.-an indentation in the glacis of the covered way, at a point where a traverse is placed.-the arrangement of a body of troops, either forward or rearward, so as to form a line nearly perpendicular to the general line of battle.-a bracket. see bracket.-an instrument of a hooked form, used in certain cases in the extraction of a fetus.-a perverse fancy; a whim which takes possession of the mind; a conceit.-to play music in measured time.