[awr-thog-ruh-fee] /ɔrˈθɒg rə fi/
noun, plural orthographies for 3–5.
the art of writing words with the proper letters, according to accepted usage; correct spelling.
the part of language study concerned with letters and spelling.
a method of spelling, as by the use of an alphabet or other system of symbols; spelling.
a system of such symbols:
Missionaries provided the first orthography for the language.
an , or an elevation drawn by means of it.
noun (pl) -phies
a writing system
the study of spelling
“correct or proper spelling,” mid-15c., ortographie, from Middle French orthographie (Old French ortografie, 13c.), from Latin orthographia, from Greek orthographia “correct writing,” from orthos “correct” (see ortho-) + root of graphein “to write” (see -graphy). Related: Orthographer.
orthokeratosis or·tho·ker·a·to·sis (ôr’thō-kěr’ə-tō’sĭs) n. The formation of an anuclear keratin layer.
[awr-thoh-ker-uh-tol-uh-jee] /ˌɔr θoʊˌkɛr əˈtɒl ə dʒi/ noun, Ophthalmology. 1. a technique for correcting refractive errors in vision by changing the shape of the cornea with the temporary use of progressively flatter hard contact lenses. orthokeratology or·tho·ker·a·tol·o·gy (ôr’thō-kěr’ə-tŏl’ə-jē) n. A method of improving unaided vision by molding the cornea with contact lenses.
- Ortho-kung t cell
Ortho-Kung T cell Or·tho-Kung T cell (ôr’thō-kŭng’) n. Any of various classes of cells recognizable to monoclonal antibodies of T cell antigens. Also called OKT cell.
noun any gene found in two or more species that can be traced to a common ancestor; specif. one of two homologous genes that is descended from a common ancestor, but which has evolved in a different way; also called orthologous gene