n. 1. Any of various substances containing phosphatidylcholine and a variety of other phospholipids, extracted from soybeans, egg yolks, or other sources and used as emulsifiers in a wide range of commercial products, including foods, cosmetics, paints, and plastics. 2. See phosphatidylcholine. [French lécithine : Greek lekithos, egg yolk + French -ine, -in.] |
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