pith ray

noun

1. medullary ray.

Word History and Origins

Origin of pith ray¹

First recorded in 1900–05

Example Sentences

Bottom--Microscopic enlargement of a tangential section of White Oak showing large pith ray, pp.

From Project Gutenberg

One to two large, simple pits to each tracheid on the radial walls of the cells of the pith ray.

From Project Gutenberg

One or two large pits to each tracheid on the radial walls of each cell of the pith ray.

From Project Gutenberg

Section I. Walls of the tracheids of the pith ray with dentate projections.

From Project Gutenberg

Walls of tracheids of pith ray smooth, without dentate projections.

From Project Gutenberg