大块浮冰
密集冰块
块冰
浮冰
流冰群

[ noun ]
a large expanse of floating ice
<noun.object>

Pack \Pack\, n. [Akin to D. pak, G. pack, Dan. pakke, Sw. packa,
Icel. pakki, Gael. & Ir. pac, Arm. pak. Cf. {Packet}.]
1. A bundle made up and prepared to be carried; especially, a
bundle to be carried on the back; a load for an animal; a
bale, as of goods. --Piers Plowman.

2. [Cf. {Peck}, n.] A number or quantity equal to the
contents of a pack; hence, a multitude; a burden. ``A pack
of sorrows.'' ``A pack of blessings.'' --Shak.

Note: ``In England, by a pack of meal is meant 280 lbs.; of
wool, 240 lbs.'' --McElrath.

3. A group or quantity of connected or similar things; as, a
pack of lies; specifically:
(a) A full set of playing cards; a deck; also, the
assortment used in a particular game; as, a euchre
pack.
(b) A number of wolves, hounds or dogs, hunting or kept
together; as, a wolf pack.
(c) A number of persons associated or leagued in a bad
design or practice; a gang; as, a pack of thieves or
knaves.
(d) A shook of cask staves.
(e) A bundle of sheet-iron plates for rolling
simultaneously.

4. A large area of floating pieces of ice driven together
more or less closely. --Kane.

5. An envelope, or wrapping, of sheets used in hydropathic
practice, called {dry pack}, {wet pack}, {cold pack},
etc., according to the method of treatment.

6. [Prob. the same word; but cf. AS. p[=ae]can to deceive.] A
loose, lewd, or worthless person. See {Baggage}. [Obs.]
--Skelton.

7. (Med.) In hydropathic practice, a wrapping of blankets or
sheets called {dry pack}, {wet pack}, {cold pack}, etc.,
according to the condition of the blankets or sheets used,
put about a patient to give him treatment; also, the fact
or condition of being so treated.
[Webster 1913 Suppl.]

8. (Rugby Football) The forwards who compose one half of the
scrummage; also, the scrummage.
[Webster 1913 Suppl.]

{Pack animal}, an animal, as a horse, mule, etc., employed in
carrying packs.

{Pack and prime road} or {Pack and prime way}, a pack road or
bridle way.

{Pack cloth}, a coarse cloth, often duck, used in covering
packs or bales.

{Pack horse}. See {Pack animal} (above).

{Pack ice}. See def. 4, above.

{Pack moth} (Zo["o]l.), a small moth ({Anacampsis
sarcitella}) which, in the larval state, is very
destructive to wool and woolen fabrics.

{Pack needle}, a needle for sewing with pack thread. --Piers
Plowman.

{Pack saddle}, a saddle made for supporting the load on a
pack animal. --Shak.

{Pack staff}, a staff for supporting a pack; a peddler's
staff.

{Pack train} (Mil.), a troop of pack animals.