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PHOTOM'ETER, n. [Gr. light, and measure.] An instrument for measuring the relati...
PHOTOL'OGY, n. [Gr. light, and discourse.] The doctrine or science of light, exp...
PHOTOLOG'IC PHOTOLOG'ICAL, a. [See Photology .] Pertaining to photology, or the ...
PHO'TIZITE, n. A mineral, an oxyd of manganese.
PHOS'PHURETED, a. Combined with a phosphuret.
PHOS'PHURET, n. A combination of phosphorus not oxygenated, with a base; as phos...
PHOS'PHORUS PHOS'PHOR, n. [L. from the Greek. See Phosphor .] 1. The morning sta...
PHOS'PHOROUS, a. The phosphorous acid is formed by a combination of phosphorus w...
PHOSPHORIT'IC, a. Pertaining to phosphorite, or of the nature of phosphorite.
PHOS'PHORITE, n. A species of calcarious earth; a subspecies of apatite.
PHOS'PHORIC, a. Pertaining to or obtained from phosphorus. The phosphoric acid i...
PHOSPHORES'CING, ppr. Exhibiting light without sensible heat.
PHOSPHORES'CENT, a. Shining with a faint light; luminous without sensible heat.
PHOSPHORES'CENCE, n. A faint light or luminousness of a body, unaccompanied with...
PHOSPHORESCE, v.i. phosphoress'. [See Phosphorus .] To shine, as phosphorus, by ...
PHOS'PHORATING, ppr. Combining with phosphorus.