In mathematics, univariate refers to an expression, equation, function or polynomial of only one variable. Objects of any of these types but involving more than one variable may be called multivariate.

Univariate Discrete Distributions
Univariate detrending methods with stochastic trends
Finding a Small Root of a Univariate Modular Equation
Temporal autocorrelation in univariate linear modeling of FMRI data.
Multivariate analysis versus multiple univariate analyses.
Antecedents of cerebral palsy. I. Univariate analysis of risks.
Maximum likelihood estimation of stationary univariate fractionally integrated time series models
Woolrich MW, Ripley BD, Brady M and Smith SM. Temporal autocorrelation in univariate linear modeling of FMRI data
Woolrich MW, Ripley BD, Brady M, Smith SM. Temporal autocorrelation in univariate linear modeling of FMRI data. NeuroImage 14: 1370-...
Global, voxel, and cluster tests, by theory and permutation, for a difference between two groups of univariate analysis of ERPs/ERFs...