coleoptile

co le op tile |ˌkōlēˈäpˌtīl ˌkɑliˈɑptaɪl | ▶noun Botany a sheath protecting a young shoot tip in a grass or cereal. ORIGIN mid 19th cent.: from Greek koleon ‘sheath ’ + ptilon ‘feather. ’

coleoptile

coleoptile |ˌkɒlɪˈɒptʌɪl | ▶noun Botany a sheath protecting a young shoot tip in a grass or cereal. ORIGIN mid 19th cent.: from Greek koleon ‘sheath ’ + ptilon ‘feather ’.