Blad"der (&?;), n. [OE. bladder,
bleddre, AS. bl&?;dre, bl&?;ddre; akin to Icel.
bla&?;ra, SW. bläddra, Dan. blære, D.
blaar, OHG. blātara the bladder in the body of animals,
G. blatter blister, bustule; all fr. the same root as AS.
blāwan, E. blow, to puff. See Blow to puff.]
1. (Anat.) A bag or sac in animals, which
serves as the receptacle of some fluid; as, the urinary bladder; the
gall bladder; -- applied especially to the urinary bladder, either
within the animal, or when taken out and inflated with air.
2. Any vesicle or blister, especially if filled
with air, or a thin, watery fluid.
3. (Bot.) A distended, membranaceous
pericarp.
4. Anything inflated, empty, or unsound. "To
swim with bladders of philosophy." Rochester.
Bladder nut, or Bladder tree
(Bot.), a genus of plants (Staphylea) with bladderlike
seed pods. -- Bladder pod (Bot.), a genus
of low herbs (Vesicaria) with inflated seed pods. --
Bladdor senna (Bot.), a genus of shrubs
(Colutea), with membranaceous, inflated pods. --
Bladder worm (Zoöl.), the larva of any
species of tapeworm (Tænia), found in the flesh or other parts
of animals. See Measle, Cysticercus. -- Bladder
wrack (Bot.), the common black rock weed of the
seacoast (Fucus nodosus and F. vesiculosus) -- called also
bladder tangle. See Wrack.
Blad"der, v. t. [imp. & p.
p. Bladdered (&?;); p. pr. & vb. n.
Bladdering.] 1. To swell out like a bladder
with air; to inflate. [Obs.] G. Fletcher.
2. To put up in bladders; as, bladdered
lard.
