[ 'pɛrɪlu:n ]
■ noun the point at which a spacecraft in lunar orbit is closest to the moon. The opposite of apolune .
Origin
1960s: from peri- + L. luna 'moon', on the pattern of perigee .
[ 'pɛrɪlu:n ]
■ noun the point at which a spacecraft in lunar orbit is closest to the moon. The opposite of apolune .
Origin
1960s: from peri- + L. luna 'moon', on the pattern of perigee .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004