From Middle English bladder, bledder, bladdre, bleddre, from Old English blæddre, a variant of blǽdre, blēdre (“blister, bladder”), from Proto-Germanic *bladrōn, *blēdrōn (“blister, bladder”); akin to Old High German platara (German Blatter) and Old Norse blaðra (Danish blære).
bladder (plural bladders)
- (zoology) A flexible sac that can expand and contract and that holds liquids or gases.
- (anatomy) Specifically, the urinary bladder.
- (botany) A hollow, inflatable organ of a plant.
- The inflatable bag inside various balls used in sports, such as footballs and rugby balls.
- A sealed plastic bag that contains wine and is usually packaged in a cask.
- (figuratively) Anything inflated, empty, or unsound.
- to swim with bladders of philosophy
- To swell out like a bladder with air; to inflate.
- (Can we find and add a quotation of G. Fletcher to this entry?)
- (transitive) To store or put up in bladders.
- bladdered lard