- Describing the process of synthesizing a particular chemical utilizing a naturally occurring chemical as a starting material, thus obviating part of a total synthesis; e.g., the conversion of cholesterol (obtained from a natural source) into a corticosteroid.
* * *semi·syn·thet·ic -sin-'thet-ik adj1) produced by chemical alteration of a natural starting material <\semisynthetic penicillins>2) containing both chemically identified and complex natural ingredients <a \semisynthetic diet>semi·syn·thet·i·cal·ly -i-k(ə-)lē adv
* * *semi·syn·thet·ic (sem″e-sin-thetґik) produced by chemical manipulation of naturally occurring substances.
Medical dictionary. 2011.
Look at other dictionaries:
semisynthetic — adjective Date: 1937 1. produced by chemical alteration of a natural starting material < semisynthetic penicillins > 2. containing both chemically identified and complex natural ingredients < a semisynthetic diet > … New Collegiate Dictionary
semisynthetic — /sem ee sin thet ik, sem uy /, adj. Chem. derived synthetically from one or more substances of natural origin. [1935 40; SEMI + SYNTHETIC] * * * … Universalium
semisynthetic — adjective synthesized by chemically modifying a natural material … Wiktionary
semisynthetic — adj. partially synthetic, partially artificial … English contemporary dictionary
semisynthetic — semi·synthetic … English syllables
semisynthetic — sem•i•syn•thet•ic [[t]ˌsɛm i sɪnˈθɛt ɪk, ˌsɛm aɪ [/t]] adj. derived synthetically from one or more substances of natural origin • Etymology: 1935–40 sem i•syn•thet′i•cal•ly, adv … From formal English to slang
semisynthetic — /ˌsɛmisɪnˈθɛtɪk/ (say .semeesin thetik) adjective partly synthetic … Australian English dictionary
semisynthetic — adjective not of natural origin; prepared or made artificially man made fibers synthetic leather • Syn: ↑man made, ↑synthetic • Similar to: ↑artificial, ↑unreal … Useful english dictionary
Heroin — Semisynthetic drug derived from morphine. Discovered in 1874, it was introduced commercially in 1898 by the Bayer company in Germany. The name heroin was coined from the German heroisch meaning heroic, strong. Heroin is stronger (more potent)… … Medical dictionary
artemether — Semisynthetic derivative of artemisinin used in the treatment of cerebral malaria. * * * ar·tem·e·ther (ahr temґə thər) a derivative of artemisinin, used in combination with lumefantrine in the treatment of malaria; administered… … Medical dictionary