PHOTO-
Pho"to-.
Defn: A combining form from Gr. fw^s, fwto`s, light; as, photography, phototype, photometer.
PHOTOBACTERIUM
Pho`to*bac*te"ri*um, n. [NL. See Photo-, and Bacterium.] (Bacteriol.)
Defn: A genus including certain comma-shaped marine bacteria which emit bluish or greenish phosphorescence. Also, any microörganism of this group.
PHOTOBIOTIC
Pho`to*bi*ot"ic, a. Etym: [Photo- + biotic.] (Biol.)
Defn: Requiring light to live; incapable of living without light; as, photobiotic plant cells.
PHOTOCERAMICS
Pho`to*ce*ram"ics, n.
Defn: Art or process of decorating pottery with photographically prepared designs. — Pho`to*ce*ram"ic (#), a.
PHOTOCHEMICAL
Pho`to*chem"ic*al, a. Etym: [Photo- + chemical.] (Chem.)
Defn: Of or pertaining to chemical action of light, or produced by it; as, the photochemical changes of the visual purple of the retina.