lecithin

noun

1. a yellow phospholipid essential for the metabolism of fats; found in egg yolk and in many plant and animal cells; used commercially as an emulsifier
   Terjemahkan ke Indonesia sumber: wordnet30
2. A complex, nitrogenous phosphorized substance widely distributed through the animal body, and especially conspicuous in the brain and nerve tissue, in yolk of eggs, and in the white blood corpuscles.
   Terjemahkan ke Indonesia sumber: webster1913