plural of rectum

Direct speech.

(architecture) A cyma (moulding) concave in its upper part, and convex in its lower part.

(philosophy) “Right reason”, which regards virtue as desirable in itself.

(astronomy) An idealised conception of the celestial sphere in which the celestial equator is perpendicular to the local horizon and the Sun reaches the zenith at its highest point.

plural of vas rectum

On a shadow in the shape of a right triangle, the length of the shadow's edge adjacent to a measured angle.

plural of cyma recta

plural of pars recta

(anatomy) The straight (descending) portion of the proximal tubule of the kidney, coming after the initial convoluted portion (the pars convoluta).