foh
101photism — /foh tiz euhm/, n. Psychol. a form of synesthesia in which a visual sensation, as of color or form, is produced by the sense of touch, hearing, etc. [1890 95; < Gk photismós illumination, equiv. to phot(ízein) to give light + ismos ISM] * * * …
102Photius — /foh shee euhs/, n. A.D. c820 891, patriarch of Constantinople 858 867, 877 882. * * * …
103photo — /foh toh/, n., pl. photos. 1. photograph. 2. Informal. See photo finish. [1855 60; shortened form of PHOTOGRAPH] * * * …
104photoactinic — /foh toh ak tin ik/, adj. emitting radiation having the chemical effects of light and ultraviolet rays, as on a photographic film. [PHOTO + ACTINIC] * * * …
105photoaging — /foh toh ay jing/, n. damage to the skin, as wrinkles or discoloration, caused by prolonged exposure to sunlight. [1985 90] * * * …
106photoallergic — /foh toh euh lerr jik/, adj. photosensitive. Cf. photosensitivity. [1935 40; PHOTO + ALLERGIC] * * * …
107photoanalyst — /foh toh an l ist/, n. a person who analyzes and interprets photographs, esp. a military specialist in aerial or satellite photography. [PHOTO + ANALYST] * * * …
108photobiotic — /foh toh buy ot ik, bee /, adj. Bot., Zool. living or thriving only in the presence of light. [PHOTO + BIOTIC] * * * …
109photocathode — /foh toh kath ohd/, n. a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation. [1925 30; PHOTO + CATHODE] * * * ▪ electronics an element of a photoelectric… …
110photocell — /foh toh sel /, n. Electronics. a solid state device that converts light into electrical energy by producing a voltage, as in a photovoltaic cell, or uses light to regulate the flow of current, as in a photoconductive cell: used in automatic… …
