[ 'rɛktrɪsi:z ]
■ plural noun ( sing. rectrix -trɪks ) Ornithology the larger feathers in a bird's tail, used for steering in flight.
Origin
C18: from L., feminine plural of rector (see rector ).
[ 'rɛktrɪsi:z ]
■ plural noun ( sing. rectrix -trɪks ) Ornithology the larger feathers in a bird's tail, used for steering in flight.
Origin
C18: from L., feminine plural of rector (see rector ).
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004