英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

periodic    音标拼音: [p,ɪri'ɑdɪk]
a. 周期的,定期的,循环的,高碘的

周期的,定期的,循环的,高碘的

periodic
周期的

periodic
周期

periodic
adj 1: happening or recurring at regular intervals; "the
periodic appearance of the seventeen-year locust" [synonym:
{periodic}, {periodical}] [ant: {aperiodic},
{nonperiodic}]
2: recurring or reappearing from time to time; "periodic
feelings of anxiety" [synonym: {periodic}, {occasional}]

Periodic \Per`i*od"ic\ (p[~e]r`[-i]*[o^]d"[i^]k), a. [Pref. per-
iodic.] (Chem.)
Pertaining to, derived from, or designating, the highest
oxygen acid ({HIO4}) of iodine.
[1913 Webster] Periodic


Periodic \Pe`ri*od"ic\ (p[=e]`r[i^]*[o^]d"[i^]k), Periodical
\Pe`ri*od"ic*al\ (p[=e]`r[i^]*[o^]d"[i^]*kal), a. [L.
periodicus, Gr. periodiko`s: cf. F. p['e]riodique.]
1. Of or pertaining to a period or periods, or to division by
periods.
[1913 Webster]

The periodical times of all the satellites. --Sir J.
Herschel.
[1913 Webster]

2. Performed in a period, or regular revolution; proceeding
in a series of successive circuits; as, the periodical
motion of the planets round the sun.
[1913 Webster]

3. Happening, by revolution, at a stated time; returning
regularly, after a certain period of time.
[1913 Webster]

The periodic return of a plant's flowering.
--Henslow.
[1913 Webster]

To influence opinion through the periodical press.
--Courthope.
[1913 Webster]

4. Acting, happening, or appearing, at fixed or somewhat
variable intervals; recurring; as, periodical epidemics
[1913 Webster]

5. (Rhet.) Of or pertaining to a period; constituting a
complete sentence.
[1913 Webster]

{Periodic comet} (Astron.), a comet that moves about the sun
in an elliptic orbit; a comet that has been seen at two of
its approaches to the sun.

{Periodic function} (Math.), a function whose values recur at
fixed intervals as the variable uniformly increases. The
trigonomertic functions, as sin(x), tan(x), etc., are
periodic functions. Exponential functions are also
periodic, having an imaginary period, and the elliptic
functions have not only a real but an imaginary period,
and are hence called doubly periodic.

{Periodic law} (Chem.), the generalization that the
properties of the chemical elements are periodic functions
of their atomic weights. "In other words, if the elements
are grouped in the order of their atomic weights, it will
be found that nearly the same properties recur
periodically throughout the entire series." The following
tabular arrangement of the atomic weights shows the
regular recurrence of groups (under I., II., III., IV.,
etc.), each consisting of members of the same natural
family. The gaps in the table indicate the probable
existence of unknown elements.

{Periodic table}, {Periodic table of the elements} (Chem.), A
tabular arrangement of the chemical elements, illustrating
the {periodic law}, described above.
[1913 Webster]

Note: Note: A modern version of the periodic table can be
found at: http://pearl1.lanl.gov/periodic/default.htm
[PJC] TABLE OF THE PERIODIC LAW OF THE CHEMICAL
ELEMENTS (The vertical columns contain the periodic
groups) Series1[ 2[ 3[ 4[ 5[ 6[ 7[ 8[ 9[ 10[ 11[ 12[
--------------------------------------------------------------
|I. II. III. IV. V. VI. VII. VIII. | RH4 RH3 RH3 RH
|R2O RO R3O3 RO2 R2O5 RO3 R2O7 RO4
--------------------------------------------------------------
H
1
Li
7
Na
23
K
39
(Cu)
63
Rb
85.2
(Ag)
(108)
Cs
133
(-)
(-)
(Au)
(197)

---------------------------------------------------------------
[1913 Webster]

Note: A similar relation had been enunciated in a crude way
by Newlands; but the law in its effective form was
developed and elaborated by Mendelejeff, whence it is
sometimes called {Mendelejeff's law}. Important
extensions of it were also made by L. Meyer. By this
means Mendelejeff predicted with remarkable accuracy
the hypothetical elements ekaboron, ekaluminium, and
ekasilicon, afterwards discovered and named
respectively scandium, gallium, and germanium.
[1913 Webster]

{Periodic star} (Astron.), a variable star whose changes of
brightness recur at fixed periods.

{Periodic time of a heavenly body} (Astron.), the time of a
complete revolution of the body about the sun, or of a
satellite about its primary.
[1913 Webster]

113 Moby Thesaurus words for "periodic":
alternate, articulated, beating, catenated, ceaseless, circling,
concatenated, connected, constant, continual, continued,
continuing, continuous, cyclic, cyclical, direct, editorial,
endless, episodic, epochal, even, ever-recurring, every other,
featureless, fluctuant, fluctuating, fluctuational, frequent,
gapless, harmonic, haunting, immediate, incessant, interminable,
intermittent, isochronal, isochronous, iterative, joined,
jointless, journalese, journalistic, libratory, linked, magazinish,
magaziny, measured, metronomic, monotonous, never-ending,
newspaperish, newspapery, nonstop, nutational, occasional,
on-again-off-again, oscillating, oscillatory, pendular, pendulous,
perennial, periodical, pulsing, reappearing, reciprocal, recurrent,
recurring, regular, repeated, repetitive, reportorial, resonant,
returning, revenant, rhythmic, rotary, round-the-clock, running,
seamless, seasonal, serial, serried, smooth, sporadic, stable,
steady, straight, thematic, thick-coming, twenty-four-hour,
ubiquitous, unbroken, unceasing, undifferentiated, undulant,
undulatory, unending, uniform, unintermitted, unintermittent,
unintermitting, uninterrupted, unrelieved, unremitting, unstopped,
vacillating, vacillatory, vibratile, vibrating, vibratory,
wavelike, wavering, wheeling


请选择你想看的字典辞典:
单词字典翻译
PERIODIC查看 PERIODIC 在百度字典中的解释百度英翻中〔查看〕
PERIODIC查看 PERIODIC 在Google字典中的解释Google英翻中〔查看〕
PERIODIC查看 PERIODIC 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • ¡Viven! (película) - Wikipedia, la enciclopedia libre
    ¡Viven! (película) ¡Viven! (título en inglés: Alive) es una película de 1993 del director y productor Frank Marshall basada en el libro ¡Viven! (1974), de Piers Paul Read, que a su vez está basado en las entrevistas realizadas a los supervivientes uruguayos del accidente del vuelo 571 de la Fuerza Aérea Uruguaya ocurrido
  • ¡Viven! (1993) - FilmAffinity
    ¡Viven! es una película dirigida por Frank Marshall con Ethan Hawke, Josh Hamilton, Vincent Spano, Bruce Ramsay Año: 1993 Título original: Alive! Sinopsis: Basada en una historia real
  • La otra historia de la tragedia de los Andes: Viven, la película sin . . .
    Narra la terrible experiencia de un grupo de jugadores del equipo nacional de rugby de Uruguay, -y algunos familiares- cuyo avión se estrelló en medio de la cordillera de los Andes en octubre de
  • ¡Viven! - película: Ver online completa en español - JustWatch
    Descubre cómo y dónde ver "¡Viven!" online en Netflix, Prime Video y Disney+ hoy mismo, incluidas las opciones 4K y gratuitas
  • ¡Viven! - Película 1993 - SensaCine. com
    'Viven!' es una adaptación cinematográfica del libro homónimo de Piers Paul Read, que narra la increíble historia de supervivencia de un grupo de jóvenes uruguayos que sufrieron un accidente
  • ¡Viven! (1993) - IMDb
    ¡Viven!: Dirigido por Frank Marshall Con Ethan Hawke, Vincent Spano, Josh Hamilton, Bruce Ramsay Un equipo de rugby de Uruguay, aislado en los Andes tras un accidente aereo, tiene que tomar medidas desesperadas para sobrevivir
  • ¡Viven! - Rakuten TV
    Forzados a subsistir a temperaturas bajo cero durante diez semanas, los supervivientes resisten lo imposible haciendo lo impensable hasta que tres de los muchachos abandonan su refugio junto al avión y se adentran en las montañas, en busca de ayuda
  • ¡Viven! (1993) - Película eCartelera
    Toda la información sobre '¡Viven!' (1993): Tráiler, cartelera en cines, sinopsis, imágenes, reparto, críticas, curiosidades de '¡Viven!'
  • ¡Viven! - Película 1993 - Cine. com
    ¡Viven! película dirigida por Frank Marshall y protagonizada por Ethan Hawke, Vincent Spano, Josh Hamilton - Año: 1993 - Tema: Alpinismo - Slogan: Superaron lo imposible, haciendo lo impensable
  • Ve ¡Viven! | Netflix
    Un avión se estrella en la cordillera de los Andes y los supervivientes de un equipo de rugby uruguayo tratan de permanecer con vida en un glaciar desolador Ver tráileres y obtener más información





中文字典-英文字典  2005-2009