The swimming bladder of certain fish, esp. of cod or sturgeon.

The swimming-bladder of a fish. Now dialect.

(a) an inflated bladder; (b) the air-bladder of a fish.

Anatomy and Zoology. A network or plexus of vessels, nerves, tubules, fibres, or strands of tissue; spec. = rete mirabile, n.

The swimming-bladder or sound of a fish.

Biology and Anatomy. The swim bladder of a fish.

(a) the air-bladder of a fish, which enables it to keep its balance in swimming; (b) an inflated bladder to assist a person in swimming.

a duct for the passage of air, esp. (Zoology) one connecting the swim bladder of a fish with its mouth.

the rete mirabile of a fish; (also now chiefly) this together with the gas gland that it supplies; cf. red gland n.

A fish's swimming-bladder (see swimming-bladder n. at swimming, n. compounds 2).

the sound or air-bladder of a fish.

the swimming bladder of a fish.

Any of various other internal organs or parts of a person or animal. The swim bladder of a fish. Cf. fish-maw n. at fish, n.1 compounds 2b. Obsolete.

(in fishes) a gland in the wall of a swim bladder which secretes gas into the bladder for increased buoyancy; (also esp. formerly) the rete…