A ray, or ‘bundle’ of parallel rays, of light emitted from the sun or other luminous body; out-streaming radiance.

A line or shaft of light; a ray or beam. Obsolete.

A ray, line of light. Obsolete.

A ray or beam of light; a flame. Obsolete.

As a modifier, as in light beam, light intensity, light ray, light signal, light socket, light source, light wave, etc.

transferred. A beam or ray (of light, etc.), a streak of lightning, etc. Chiefly poetic.

A single line or narrow beam of light; each of the lines in which light (and accompanying radiant heat) may seem to emanate from the sun or other…

A ray, beam of light. Obsolete.

= ray, n.5 1a.

A beam (of light). Obsolete. rare.

A ray or beam of emitted, reflected, or refracted light. Usually in plural. Obsolete except as in sense 2c.

A beam or ray; a halo. Obsolete.

A ray of light. Obsolete.

A beam, ray.

A ray or beam of light or radiant heat. Obsolete.

poetic and literary. A shaft or beam of light. Obsolete.

A ray of light, a beam.

(?) A long narrow stretch (of light). (But both examples may belong properly to tract, n.3: cf. branch II.)

spec. A beam, flash, ray of light.

transferred. A ray or beam of light, sunshine, etc.

A beam or ray of light.

A sloping beam or ray of light.

A material object resembling a sword. A sword-like ray or flash of light.

Physics and Astronomy. A secondary ray or particle, esp. a secondary cosmic ray.