10 letters · 17 points in Scrabble
noun the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel
originFrom Ancient Greek θρόμβωσις (thrómbōsis, “curdling, clotting”). By surface analysis, thrombus + -osis.
Etymology from Wiktionary, CC BY-SA 3.0