trea ‧ cle /ˈtriːk ə l/ BrE AmE noun [uncountable]
[ Date: 1300-1400 ; Language: Old French ; Origin: triacle , from Latin theriaca , from Greek theriake 'cure for a poisonous bite' , from therion 'wild animal' ]
1 . British English a thick sweet black sticky liquid that is obtained from raw sugar and used in cooking SYN molasses American English
2 . a way of expressing love and emotions that seems silly or insincere:
A film that does not turn into treacle.
3 . ↑ golden syrup :
a treacle tart
—treacly adjective