Oxford Advanced American Dictionary

Definition of wellington noun from the Oxford Advanced Learner's Dictionary

wellington

noun
wellington pronunciation English ˈwelɪŋtən wellington pronunciation American ˈwelɪŋtən
(also wellington boot, informal welly) (all British English) (North American English rubber boot)
 
one of a pair of long rubber boots, usually reaching almost up to the knee, that you wear to stop your feet getting wet
a pair of wellingtons