coch ‧ i ‧ neal /ˌkɒtʃəˈniːl◂, ˌkɒtʃɪˈniːl◂ $ ˌkɑː-/ BrE AmE noun [uncountable]
[ Date: 1500-1600 ; Language: French ; Origin: cochenille , from Old Spanish cochinilla 'small insect from which cochineal is obtained' ]
a substance used to give food a red colour