WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / M / mast cell mast cell noun /mæstsɛl/ 9 letters Scrabble 12 WWF 16 Definitions noun a large connective tissue cell that contains histamine and heparin and serotonin which are released in allergic reactions or in response to injury or inflammation labrocytemastocyte Look “mast cell” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →