WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / M / mastocyte mastocyte noun 9 letters Scrabble 16 WWF 17 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 labrocytemast cell Look “mastocyte” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →