cu·cum·ber 
/ˈkju:ˌkʌmbɚ/ noun
plural cu·cum·bers /ˈkju:ˌkʌmbɚ/ noun [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
(as) cool as a cucumber — see 1cool
