From Longman Dictionary of Contemporary Englishgherkingher‧kin /ˈɡɜːkɪn $ ˈɡɜːr-/ noun [countable] 
DFFa small type of cucumber that has been preserved in vinegar to make a type of pickle
DFFa small type of cucumber that has been preserved in vinegar to make a type of pickleExamples from the Corpus
gherkin• Chips have lots of vitamin C and gherkins are fat-free, but mix with jacket spuds and calorie-free salads.• Pâté with sliced egg and gherkin.• Pizza Roll - spicy chopped pork with hunks of garlic salami, black olives, red popper and gherkins.• Divide one tablespoon of chopped gherkins among the toasts and serve.• Pierce 2 olive halves and one gherkin with halved cocktail sticks and put in orange to make porcupines' eyes and nose.• Actually, a damn sight more than from that stiff gherkin Smott.• Garnish with gherkins and cherry tomatoes.Gherkin, thethe GherkinGherkin, the a very tall office building in London, designed by the British architect Sir Norman Foster, and completed in 2004. Some people think it looks like a gherkin because of its shape. The official name of the building is the Swiss Reinsurance Tower. It is also known more informally as the Swiss Re Building.Origin gherkin (1600-1700) Dutch gurken “cucumbers”, from Polish ogurek, from Medieval Greek agouros “watermelon” 