From Longman Dictionary of Contemporary Englishwellingtonwel‧ling‧ton /ˈwelɪŋtən/ (also wellington boot) noun [countable] 
British EnglishDCC a rubber boot that stops your foot getting wet
British EnglishDCC a rubber boot that stops your foot getting wetExamples from the Corpus
wellington• Think that farmers wives still wear sackcloth aprons and wellingtons? 2.• She is wearing ugly black wellingtons that she has found in a cupboard somewhere.• One of his feet found its way into an enormous wellington boot.• He took off his wellingtons and put on his cowboy boots.• Rows of wellington boots and raincoats lined the inside porch.• The wellingtons are too big for her but she doesn't care.• Many of the people walking had put on their wellingtons or sheepskin boots.• Waterproofs, wellingtons or other strong footwear and a packed lunch.WellingtonWellington the capital city of New Zealand, on the North Island, the country's second largest city and an important portOrigin wellington (1800-1900) Duke of Wellington (1769-1852), English soldier who wore long boots 