# Definition of covariant in US English:

## covariant

### noun

Mathematics
• A function of the coefficients and variables of a given function which is invariant under a linear transformation except for a factor equal to a power of the determinant of the transformation.

• ‘Residual depression scores and negative affectivity scores also were linked to cardiac-related mortality after adjusting for each other and for cardiac covariants.’
• ‘This was significant even after adjustments for covariants.’
• ‘One-way analysis of covariance, with pretest scores as covariants, were used when tests for homogeneity of variance dictated that ANCOVA was warranted.’
• ‘This was dealt with by using the SES score as a covariant in the analysis.’
• ‘Baseline covariants were included in models that were judged a priori to be clinically sound.’

Mathematics
• 1Changing in such a way that mathematical interrelations with another simultaneously changing quantity or set of quantities remain unchanged.

• ‘In 1887 he published a famous paper in which he developed the calculus of tensors, following on the work of Christoffel, including covariant differentiation.’
• ‘Size change is so covariant among morphological traits in general that separate body parts are often good estimators of change in other parts.’
• ‘The special theory of relativity is notorious for positing laws that turn what we thought were invariant quantities, e.g., length, duration, and mass, into covariant quantities.’
• ‘Moreover, for the minor factorial axis, the covariant part of characters becomes less intuitive and noise becomes more important.’
• ‘Salmon, in his famous text, gave an equation in covariant form.’
1. 1.1 Of, having the properties of, or relating to a covariant.
• ‘Thus each axis can be seen as a composite morphological character combining the covariant part of the initial morphometric parameters.’
• ‘However, such covariant mutation can also occur within closely related groups.’
• ‘Salmon, in his famous text, gave an equation in covariant form.’
• ‘Moreover, for the minor factorial axis, the covariant part of characters becomes less intuitive and noise becomes more important.’
• ‘In the theory of relativity, there are both covariant and invariant laws.’

## covariant

/ˌkōˈverēənt//ˌkoʊˈvɛriənt/