fruit belonging to the group of fruit that includes oranges, lemons, limes and grapefruit 柑橘类果实 
citrus fruit/trees/growers 柑橘果实／果树／种植者 fabric in bright citrus shades (= orange, yellow or green) 色调鲜艳的橙黄色布料
Oxford Collocations DictionaryCitrus is used before these nouns:- fruit
Word OriginLatin, ‘citron tree, thuja’.
