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semisynthetic

[sem-ee-sin-thet-ik, sem-ahy-] /ˌsɛm i sɪnˈθɛt ɪk, ˌsɛm aɪ-/
adjective, Chemistry
1.
derived synthetically from one or more substances of natural origin.
Origin
1935-1940
1935-40; semi- + synthetic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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semisynthetic in Medicine

semisynthetic sem·i·syn·thet·ic (sěm'ē-sĭn-thět'ĭk, sěm'ī-)
adj.

  1. Prepared by chemical synthesis from natural materials, as of a pharmaceutical.

  2. Consisting of a mixture of natural and synthetic substances.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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