以总数表示, 大概

[经] 以整数表示, 以约数表示

Round \Round\, a. [OF. roond, roont, reond, F. rond, fr. L.
rotundus, fr. rota wheel. See {Rotary}, and cf. {Rotund},
{roundel}, {Rundlet}.]
1. Having every portion of the surface or of the
circumference equally distant from the center; spherical;
circular; having a form approaching a spherical or a
circular shape; orbicular; globular; as, a round ball.
``The big, round tears.'' --Shak.

Upon the firm opacous globe
Of this round world. --Milton.

2. Having the form of a cylinder; cylindrical; as, the barrel
of a musket is round.

3. Having a curved outline or form; especially, one like the
arc of a circle or an ellipse, or a portion of the surface
of a sphere; rotund; bulging; protuberant; not angular or
pointed; as, a round arch; round hills. ``Their round
haunches gored.'' --Shak.

4. Full; complete; not broken; not fractional; approximately
in even units, tens, hundreds, thousands, etc.; -- said of
numbers.

Pliny put a round number near the truth, rather than
the fraction. --Arbuthnot.

5. Not inconsiderable; large; hence, generous; free; as, a
round price.

Three thousand ducats; 'tis a good round sum.
--Shak.

Round was their pace at first, but slackened soon.
--Tennyson.

6. Uttered or emitted with a full tone; as, a round voice; a
round note.

7. (Phonetics) Modified, as a vowel, by contraction of the
lip opening, making the opening more or less round in
shape; rounded; labialized; labial. See Guide to
Pronunciation, [sect] 11.

8. Outspoken; plain and direct; unreserved; unqualified; not
mincing; as, a round answer; a round oath. ``The round
assertion.'' --M. Arnold.

Sir Toby, I must be round with you. --Shak.

9. Full and smoothly expanded; not defective or abrupt;
finished; polished; -- said of style, or of authors with
reference to their style. [Obs.]

In his satires Horace is quick, round, and pleasant.
--Peacham.

10. Complete and consistent; fair; just; -- applied to
conduct.

Round dealing is the honor of man's nature.
--Bacon.

{At a round rate}, rapidly. --Dryden.

{In round numbers}, approximately in even units, tens,
hundreds, etc.; as, a bin holding 99 or 101 bushels may be
said to hold in round numbers 100 bushels.

{Round bodies} (Geom.), the sphere right cone, and right
cylinder.

{Round clam} (Zo["o]l.), the quahog.

{Round dance} one which is danced by couples with a whirling
or revolving motion, as the waltz, polka, etc.

{Round game}, a game, as of cards, in which each plays on his
own account.

{Round hand}, a style of penmanship in which the letters are
formed in nearly an upright position, and each separately
distinct; -- distinguished from running hand.

{Round robin}. [Perhaps F. round round + ruban ribbon.]
(a) A written petition, memorial, remonstrance, protest,
etc., the signatures to which are made in a circle so
as not to indicate who signed first. ``No round
robins signed by the whole main deck of the Academy
or the Porch.'' --De Quincey.
(b) (Zo["o]l.) The cigar fish.

{Round shot}, a solid spherical projectile for ordnance.

{Round Table}, the table about which sat King Arthur and his
knights. See {Knights of the Round Table}, under {Knight}.


{Round tower}, one of certain lofty circular stone towers,
tapering from the base upward, and usually having a
conical cap or roof, which crowns the summit, -- found
chiefly in Ireland. They are of great antiquity, and vary
in heigh from thirty-five to one hundred and thiry feet.


{Round trot}, one in which the horse throws out his feet
roundly; a full, brisk, quick trot. --Addison.

{Round turn} (Naut.), one turn of a rope round a timber, a
belaying pin, etc.

{To bring up with a round turn}, to stop abruptly. [Colloq.]

Syn: Circular; spherical; globular; globase; orbicular;
orbed; cylindrical; full; plump; rotund.