rays

A ribbon-like arrangement of cells, usually oriented in the radial direction
Found on http://www.encyclo.co.uk/local/21113

Rays

Rays is British slang for sunshine.
Found on http://www.probertencyclopaedia.com/browse/ZR.HTM

Rays

ribbon-like groups of vessels, tracheids and fibers that move water and other substances in the xylem between inner and outer rings and the phloem; best seen in radial sections of the trunk.
Found on https://www.encyclo.co.uk/local/22455

Rays

The soft or spiny supporting elements of fish fins.
Found on http://english-fly-fishing-flies.s3-website-eu-west-1.amazonaws.com/glossar

rays

Designation (also medullary rays) for the radial wooden channels; see below Xylem,
Found on https://glossary.wein-plus.eu/rays
No exact match found