Mast
131mast cell — Resident cell of connective tissue that contains many granules rich in histamine and heparan sulphate. Release of histamine from mast cells is responsible for the immediate reddening of the skin in a weal and flare response. Very similar to… …
132mast clamp — Naut. 1. a pierced slab of hardwood built into the deck structure of a small ship or boat to receive the force of the mast, which is fitted tightly through it. 2. Also called mast hasp. a metal collar fitted to a thwart of a small boat to steady… …
