English
coagulator
From coagulate + -or.
A compound of coagulate + -or
Proto-Indo-European *h₂eǵ- ‘to drive’
…
Latin coāgulō ‘to curdle, coagulate’
Latin coāgulātus ‘curdled’
Middle English coagulat ‘coagulated’
Middle English coagulaten ‘(of blood) to clot or, make blood coagulate’
English coagulate
Today it means
noun Something that causes coagulation (clumping or solidifying).
Language periods are conventional ranges, not dates for this word.
Etymograph / coagulator