n.
Pronunciation: ' t ə m-bl ə r
Function: noun
Date: 14th century
1 : one that tumbles: as a : one who performs tumbling feats : ACROBAT b : any of various domestic pigeons that tumble or somersault backward in flight or on the ground
2 : a drinking glass without foot or stem and orig. with pointed or convex base
3 a : a movable obstruction in a lock (as a lever, latch, wheel, slide, or pin) that must be adjusted to a particular position (as by a key) before the bolt can be thrown b : a piece on which the mainspring acts in a gun's lock
4 : a device or mechanism for tumbling (as a revolving cage in which clothes are dried)
5 : a worker who operates a tumbler
– tum · bler · ful \ - ˌ fu ̇ l \ noun