n. 时期, 节段, 节, 句点, 学时, 周期

a. 当时特有的, 过去某段时期的

interj. 就是这话, 就是这么回事

[化] 周期

[医] 期, 时期

[经] 时期, 期间, 周期

Period \Pe"ri*od\, v. t.
To put an end to. [Obs.] --Shak.


Period \Pe"ri*od\, n. [L. periodus, Gr. ? a going round, a way
round, a circumference, a period of time; ? round, about + ?
a way: cf. F. p['e]riode.]
1. A portion of time as limited and determined by some
recurring phenomenon, as by the completion of a revolution
of one of the heavenly bodies; a division of time, as a
series of years, months, or days, in which something is
completed, and ready to recommence and go on in the same
order; as, the period of the sun, or the earth, or a
comet.

2. Hence: A stated and recurring interval of time; more
generally, an interval of time specified or left
indefinite; a certain series of years, months, days, or
the like; a time; a cycle; an age; an epoch; as, the
period of the Roman republic.

How by art to make plants more lasting than their
ordinary period. --Bacon.

3. (Geol.) One of the great divisions of geological time; as,
the Tertiary period; the Glacial period. See the Chart of
{Geology}.

4. The termination or completion of a revolution, cycle,
series of events, single event, or act; hence, a limit; a
bound; an end; a conclusion. --Bacon.

So spake the archangel Michael; then paused,
As at the world's great period. --Milton.

Evils which shall never end till eternity hath a
period. --Jer. Taylor.

This is the period of my ambition. --Shak.

5. (Rhet.) A complete sentence, from one full stop to
another; esp., a well-proportioned, harmonious sentence.
``Devolved his rounded periods.'' --Tennyson.

Periods are beautiful when they are not too long.
--B. Johnson.

Note: The period, according to Heyse, is a compound sentence
consisting of a protasis and apodosis; according to
Becker, it is the appropriate form for the
co["o]rdinate propositions related by antithesis or
causality. --Gibbs.

6. (Print.) The punctuation point [.] that marks the end of a
complete sentence, or of an abbreviated word.

7. (Math.) One of several similar sets of figures or terms
usually marked by points or commas placed at regular
intervals, as in numeration, in the extraction of roots,
and in circulating decimals.

8. (Med.) The time of the exacerbation and remission of a
disease, or of the paroxysm and intermission.

9. (Mus.) A complete musical sentence.

{The period}, the present or current time, as distinguished
from all other times.

Syn: Time; date; epoch; era; age; duration; limit; bound;
end; conclusion; determination.


Period \Pe"ri*od\, v. i.
To come to a period; to conclude. [Obs.] ``You may period
upon this, that,'' etc. --Felthman.