Google's Gmail Web-based email service runs on the Internet Message Access Protocol system, but it also offers Post Office Protocol mail server access.
Definition of LUMEN. 1. 2. : the bore of a tube (as of a hollow needle or catheter). 3. : a unit of luminous flux equal to the light emitted in a unit solid angle by a uniform point source of one candle intensity.
Noun. 1. semen-the thick white fluid containing spermatozoa that is ejaculated by the male genital tract. come, cum, ejaculate, seminal fluid, seed. milt-seminal fluid produced by male fish. bodily fluid, body fluid, liquid body substance, humour, humor-the liquid parts of the body.