clot; change from a liquid to a thickened or solid state
The blood began to coagulate at the wound within minutes.
Vocabulary like coagulate appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.
clear up; make clear and (more) comprehensible
section; (grammar) an expression including a subject and predicate
fear of enclosed spaces; a morbid fear of being closed in a confined space
forgiveness; good weather with comfortable temperatures
commonplace; a trite or obvious remark
high point; the highest point of anything conceived of as growing or developing or unfolding
exclusive group; an exclusive circle of people with a common purpose
become excessive