beet /biːt/ BrE AmE noun [uncountable and countable]
[ Language: Old English ; Origin: bete , from Latin beta ]
1 . ( also sugar beet ) a vegetable that sugar is made from
2 . American English a plant with a round dark red root that you cook and eat as a vegetable SYN beetroot British English
3 . red as a beet American English informal having a red face, especially because you are embarrassed