Clot (Barcelona Metro)
WordNet
noun
(1) A lump of material formed from the content of a liquid
verb
(2) Coalesce or unite in a mass
"Blood clots"
(3) Turn into curds
"Curdled milk"
(4) Change from a liquid to a thickened or solid state
"Coagulated blood"
(5) Cause to change from a liquid to a solid or thickened state