lunation

名词 lunation:

1. the period between successive new moons (29.531 days)
   同义词：lunar month, moon, synodic month

lu.na.tion

n.（名词）
The time that elapses between successive new moons, averaging 29 days, 2 hours, 44 minutes; a lunar month.
朔望月：相继两次新月间的时期周期，平均二十九天十二小时四十四分；一个朔望月

来源：
Middle English lunacioun
中古英语 lunacioun
from Medieval Latin lôn3tiô lôn3tiôn-
源自 中世纪拉丁语 lôn3tiô lôn3tiôn-
from Latin lôna * see lunar
源自 拉丁语 lôna *参见 lunar