[awr-thop-tiks] /ɔrˈθɒp tɪks/
noun, (used with a singular verb)
a method of exercising the eye and its muscles in order to cure strabismus or improve vision.
(functioning as sing) the science or practice of correcting defective vision, as by exercises to strengthen weak eye muscles
orthoptics or·thop·tics (ôr-thŏp’tĭks)
The study and treatment of defective binocular vision, of defects in the action of the ocular muscles, or of faulty visual habits.
/ɔːˈθɒptɪst/ noun 1. a person who is qualified to practise orthoptics
/ˌɔːθəʊpaɪˈrɒksiːn/ noun 1. a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene orthopyroxene (ôr’thə-pī-rŏk’sēn’) Any variety of the mineral pyroxene that crystallizes in the orthorhombic system and contains no calcium and little or no aluminum. Enstatite is an orthopyroxene.
/ˈɔːθəˌrɛksɪə/ noun 1. a disorder characterized by a morbid obsession with eating healthy foods only noun an obsession with eating only ‘healthy’ food; also called orthorexia nervosa Examples The yoga instructor seems to be suffering from orthorexia. Usage Note orthorexic adj
[awr-thuh-rom-bik] /ˌɔr θəˈrɒm bɪk/ adjective, Crystallography. 1. noting or pertaining to a system of crystallization characterized by three unequal axes intersecting at right angles; ; trimetric. /ˌɔːθəʊˈrɒmbɪk/ adjective 1. (crystallog) relating to the crystal system characterized by three mutually perpendicular unequal axes Also rhombic, trimetric orthorhombic (ôr’thō-rŏm’bĭk) Relating to a crystal having three axes of […]