ream
1. ream \'re-m\ n [ME reme, fr. MF raime, fr. Ar rizmah, lit., bundle] 1: a
quantity of paper being 20 quires or variously 480, 500, or 516 sheets 2:
a great amount - usu. used in pl.
2. ream vt [perh. fr. (assumed) ME dial. remen to open up, fr. OE dial.
re-man]; akin to OE ry-man to open up, ru-m roomy - more at ROOM 1a: to
widen the opening of (a hole) : COUNTERSINK 1b1: to enlarge or dress out
(a hole) with a reamer 1b2: to enlarge the bore of (as a gun) in this way
1c: to remove by reaming 2a: to press out with a reamer 2b: to press out
the juice of with a reamer