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pentad

n. 五个一组;五年间;五价元素

五个一组;五年间;五价元素

WordNet (r) 3.0 (2006) (WordNet)

pentad
n 1: the cardinal number that is the sum of four and one [synonym:
{five}, {5}, {V}, {cinque}, {quint}, {quintet}, {fivesome},
{quintuplet}, {pentad}, {fin}, {Phoebe}, {Little Phoebe}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Pentad \Pen"tad\, n. [Gr. penta`s penta`dos, a body of five, fr.
pe`nte five.] (Chem.)
Any element, atom, or radical, having a valence of five, or
which can be combined with, substituted for, or compared
with, five atoms of hydrogen or other monad; as, nitrogen is
a pentad in the ammonium compounds.
[1913 Webster]

2. Any grouping of five things.
[PJC]

Pentad \Pen"tad\, a. (Chem.)
Having the valence of a pentad.
[1913 Webster] Pentadactyl

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英文字典中文字典相关资料:

PENTAD Definition Meaning - Merriam-Webster
The meaning of PENTAD is a group of five
Pentad - Wikipedia
Pentad ('group of 5') or pentade may refer to: Pentad (chord), a five-note chord; Pentad (computing), or pentade, a 5-bit group; a division of the solar term; Dramatistic pentad, Kenneth Burke's method of analyzing motivation; Medical pentad, a group of five signs or symptoms which characterise a specific medical condition; a tuple of length 5
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PENTAD definition and meaning | Collins English Dictionary
5 meanings: 1 a group or series of five 2 the number or sum of five 3 a period of five years 4 chemistry a pentavalent Click for more definitions
pentad - Wiktionary, the free dictionary
pentad (plural pentads) Synonym of quintet: A group of five things, particularly Synonym of quinquennium: a five-year period, especially in reference to the first and second halves of calendrical decades (climatology) A five-day period, especially a temperature average taken every five days
pentad, n. meanings, etymology and more - Oxford English Dictionary
There are four meanings listed in OED's entry for the noun pentad See ‘Meaning use’ for definitions, usage, and quotation evidence
Pentad - definition of pentad by The Free Dictionary
(Mathematics) a group or series of five 2 (Mathematics) the number or sum of five 4 (Chemistry) chem a pentavalent element, atom, or radical 5 (Physical Geography) meteorol a period of five days
What does PENTAD mean? - Definitions. net
A pentad is a group or set of five things This could refer to five people, five objects, five attributes, amongst others It is used in various disciplines such as chemistry, music, linguistics, and philosophy to denote certain groups or sequences
PENTAD Definition Meaning | Dictionary. com
Pentad definition: a period of five years See examples of PENTAD used in a sentence
Pentad - Definition, Usage Quiz | UltimateLexicon. com
A pentad refers to a group, set, or series of five The term finds diverse applications across various fields such as literature, music, chemistry, and other sciences The word “pentad” originates from the Greek word “pentás” (πεντάς), which means “a group of five ” The Greek root “pente” (πέντε) translates directly to “five ”

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