浮桥

Raft \Raft\, n. [Originally, a rafter, spar, and fr. Icel. raptr
a rafter; akin to Dan. raft, Prov. G. raff a rafter, spar;
cf. OHG. r[=a]fo, r[=a]vo, a beam, rafter, Icel. r[=a]f roof.
Cf. {Rafter}, n.]
1. A collection of logs, boards, pieces of timber, or the
like, fastened together, either for their own collective
conveyance on the water, or to serve as a support in
conveying other things; a float.

2. A collection of logs, fallen trees, etc. (such as is
formed in some Western rivers of the United States), which
obstructs navigation. [U.S.]

3. [Perhaps akin to raff a heap.] A large collection of
people or things taken indiscriminately. [Slang, U. S.]
``A whole raft of folks.'' --W. D. Howells.

{Raft bridge}.
(a) A bridge whose points of support are rafts.
(b) A bridge that consists of floating timbers fastened
together.

{Raft duck}. [The name alludes to its swimming in dense
flocks.] (Zo["o]l.)
(a) The bluebill, or greater scaup duck; -- called also
{flock duck}. See {Scaup}.
(b) The redhead.

{Raft port} (Naut.), a large, square port in a vessel's side
for loading or unloading timber or other bulky articles; a
timber or lumber port.