What is "lumina"

Lumen \Lu"men\, n.; pl. L. Lumina, E. Lumens. [L., light, an opening for light.]

1. (Photom.)

   1. A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the center of the sphere.

   2. A unit of light flux, being the flux through one square meter of surface the illumination of which is uniform and of unit brightness.

2. (Biol.) An opening, space, or cavity, esp. a tubular cavity; a vacuole.

alt. (plural of lumen English) n. (plural of lumen English)

1. n. a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions [syn: lm]

2. a cavity or passage in a tubular organ; "the lumen of the intestine"

3. [also: lumina (pl)]

See lumen

LUMINA, also known as 201 Folsom Street, is a 655-unit residential condominium project in the Rincon Hill neighborhood of San Francisco. Developed by Tishman Speyer, it is located one block to the southwest of its sister project, The Infinity.