To build up or be arranged in the form of a pyramid. / (transitive, genetics) To combine (a series of genes) into a single genotype. / (intransitive) To employ, or take part in, a pyramid scheme.

plural of pyramidal

Obsolete form of pyramid.

plural of pyramide / plural of pyramis

(organic chemistry) distorted towards a tetrahedral molecular geometry.

plural of pyramidalization

The deformation of a trigonal planar molecule into a tetrahedral arrangement.

The practice of an athlete progressively increasing the dosage of an illicit drug to a maximum, and then progressively lowering it, between competitions so as to reduce the chances of being caught.

present participle of pyramid

To make pyramidal