From Longman Dictionary of Contemporary Englishbeetrootbeet‧root /ˈbiːtruːt/ noun [countable, uncountable] 1 British English a plant with a round dark red root that you cook and eat as a vegetable SYN beet American English2 → go beetroot
Examples from the Corpus
beetroot• The dunderheads etc wander in and out picking hungrily at the remains of a beetroot salad.• By now, his wife would have given up waiting and served the cold beetroot soup with sour cream and chives.• He is particularly fond of hot beetroot, recommending it as an accompaniment to roast saddle of hare - a delicious combination.• One of them asked if I would like some beetroot.• Mix in the yogurt, stir in the beetroot and apple and season well.• This liquid was made by chopping up the roots of an inedible yam which looked like stringy, tough beetroot.• Anyway, they taste much the same, and last year beetroot soup was added to the menu. 