Swim bladder, an air bladder of a fish. -- To be in the swim, to be in
a favored position; to be associated with others in active affairs.
[Colloq.]
Swim, v. i. [OE. swime dizziness, vertigo, AS. swma; akin to D. zwijm,
Icel. svimi dizziness, svina to subside, sva to abate, G. schwindel
dizziness, schwinden to disappear, to dwindle, OHG. swnan to dwindle.
Cf. Squemish, Swindler.] To be dizzy; to have an unsteady or reeling
sensation; as, the head swims.
Swim"bel (?), n. [Etymol. uncertain.] A moaning or sighing sound or
noise; a sough. [Obs.] Chaucer.
Swim"mer (?), n. 1. One who swims.