laser eye surgery that involves scraping away the protective cells of the cornea before reshaping its surface to improve vision PRK
- Photo relief
noun 1. a method of showing the configuration of the relief of an area by photographing a model of it that is illuminated by a lamp in the northwest corner
[foh-toh-ri-zist] /ˌfoʊ toʊ rɪˈzɪst/ noun 1. Electronics. a photosensitive liquid polymer, used in photolithography to produce integrated circuits.
photoresistor (fō’tō-rĭ-zĭs’tər) A resistor whose resistance varies as a function of the intensity of light it is exposed to. Also called photocell. See also photoelectric.
[foh-toh-res-puh-rey-shuh n] /ˌfoʊ toʊˌrɛs pəˈreɪ ʃən/ noun 1. the oxidation of carbohydrates in many higher plants in which they get oxygen from light and then release carbon dioxide, somewhat different from photosynthesis. /ˌfəʊtəʊˌrɛspəˈreɪʃən/ noun 1. (in plants) a reaction that occurs during photosynthesis in which oxygen is assimilated and used to oxidize carbohydrates, with the […]