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cucumber

1 ENTRIES FOUND:
cucumber /ˈkjuːˌkʌmbɚ/ noun
plural cucumbers
cucumber
/ˈkjuːˌkʌmbɚ/
noun
plural cucumbers
Britannica Dictionary definition of CUCUMBER
[count, noncount]
: a long vegetable with dark green skin and crisp flesh that is often used in salads or for making pickles see color picture on this page

(as) cool as a cucumber

see 1cool