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tetrad
[/ˈtɛtræd/]
noun
pl: tetrads
tétrade
1.
A group or set of four related things
The tetrad of elements includes fire, water, earth, and air.
A tétrade de elementos inclui fogo, água, terra e ar.
2.
In chemistry, an atom or radical having a valence of four
Carbon is a tetrad element in organic chemistry.
O carbono é um elemento tétrade na química orgânica.
3.
In biology, a group of four homologous chromosomes formed during meiosis
During meiosis, bivalents form a tetrad structure.
Durante a meiose, os bivalentes formam uma estrutura de tétrade.
Synonyms
quartet
foursome
group of four
Regional Variations
General Brazilian
tétrade
Standard term used in scientific and academic contexts
Portugal
tétrade
Standard term used in scientific and academic contexts
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