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cova

 ลองค้นหาคำในรูปแบบอื่น: -cova-, *cova*
  WordNet (3.0) 
covalence
(n) valence characterized by the sharing of electrons in a chemical compound; the number of pairs of electrons an atom can share, Syn. covalency
covalent
(adj) of or relating to or characterized by covalence, Example:covalent bond
covalent bond
(n) a chemical bond that involves sharing a pair of electrons between atoms in a molecule
covariance
(n) (statistics) the mean value of the product of the deviations of two variates from their respective means
covariant
(adj) changing so that interrelations with another variable quantity or set of quantities remain unchanged
covariation
(n) (statistics) correlated variation
  Collaborative International Dictionary (GCIDE) 
covariance

n. a statistical measure of the relationship of two variables, formed by multiplying the difference of each variable from its mean, both variables being measured at the same time, and averaging all such products. [ WordNet 1.5 +PJC ]

Covariant

n. (Higher Alg.) A function involving the coefficients and the variables of a quantic, and such that when the quantic is lineally transformed the same function of the new variables and coefficients shall be equal to the old function multiplied by a factor. An invariant is a like function involving only the coefficients of the quantic. [ 1913 Webster ]

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