ngf ngb • ngo · · · Info · Definitions · Synonyms · Characters · · ngf · · Text Latin · · Script 3 · · Length 1 · · Syllables Definitions · · · (noun) a protein that is involved in the growth of peripheral nerve cells. Synonyms: nerve growth factor, NGF. · · Noun Definition 1 Synonyms · · · nerve growth factor · · Synonym 1 Characters · · f latin small letter f U+0066 g latin small letter g U+0067 n latin small letter n U+006E