[foh-toh-thee-od-l-ahyt] /ˌfoʊ toʊ θiˈɒd lˌaɪt/
an optical tracking instrument consisting of a camera and mounted on a single tripod, used in photogrammetry and in tracking rockets.
[foh-tuh-ther-uh-pyoo-tiks] /ˌfoʊ təˌθɛr əˈpyu tɪks/ noun, (used with a singular verb) 1. the branch of that deals with the curative use of light rays.
[foh-tuh-ther-uh-pee] /ˌfoʊ təˈθɛr ə pi/ noun 1. treatment of disease, especially of the skin, by means of light rays. 2. . /ˌfəʊtəʊˈθɛrəpɪ/ noun 1. (functioning as sing) the use of light in the treatment of disease phototherapy pho·to·ther·a·py (fō’tō-thěr’ə-pē) n. The treatment of a disorder, especially of the skin, by exposure to light, including ultraviolet […]
[foh-tuh-thur-mik] /ˌfoʊ təˈθɜr mɪk/ adjective 1. pertaining to the thermal effects of light. 2. pertaining to or involving both light and heat. /ˌfəʊtəʊˈθɜːmɪk/ adjective 1. of or concerned with light and heat, esp the production of heat by light
[foh-tot-n-uh s] /foʊˈtɒt n əs/ noun, Biology. 1. the normal condition of sensitiveness to light in organisms or their organs. 2. the irritability exhibited by cytoplasm when exposed to light of a certain intensity. /fəʊˈtɒtənəs/ noun 1. the condition of plants that enables them to respond to the stimulus of light phototonus pho·tot·o·nus (fō-tŏt’n-əs) n. […]