con ‧ geal /kənˈdʒiːl/ BrE AmE verb [intransitive]
[ Date: 1300-1400 ; Language: Old French ; Origin: congeler , from Latin congelare , from com- ( ⇨ COM- ) + gelare 'to freeze' ]
if a liquid such as blood congeals, it becomes thick or solid:
The fat had slowly congealed in the pan.