lunation

English

Etymology

Borrowed from Medieval Latin lūnātiō.

Pronunciation

• IPA^(key): /luːˈneɪʃən/

• Audio (Southern England):

  (file)

• Rhymes: -eɪʃən
• Hyphenation: lu‧na‧tion

Noun

lunation (plural lunations)

1. A month of an average of approximately 29.53 days, measured from a lunar phase until the return of that same phase.
   • 1357, John Mandeville, The Travels of Sir John Mandeville‎^[1], modernized spelling edition:

     And there is not the moon seen in all the lunation, save only the second quarter.

   • 1982 December 25, J. Grainger, “Gay-by-Gay Calendars at a Glance”, in Gay Community News, volume 10, number 23, page 9:

     The seventh annual Lunar Calendar challenges the traditional structure of the calendar from a feminist perspective. The Lunar Calendar bases its months bases its months on lunations or 28 day lunar cycles, giving us thirteen in a calendar year.

2. The irregular period from one new moon until the next.

Synonyms

• synodic month
• lunar month

Derived terms

• interlunation

Translations

a month measured from a lunar phase until the return of that same phase

• Bulgarian: лунен месец m (lunen mesec)
• Dutch: lunatie f, synodische maand f
• Galician: lunación (gl) f
• Polish: lunacja f
• Portuguese: lunação (pt) f
• Russian: лу́нный ме́сяц (ru) m (lúnnyj mésjac), лунация f (lunacija)
• Swedish: månmånad (sv) c
• Tày: bươn
• Vietnamese: tuần trăng

the name of term given the irregular period from one new moon until the next

• Polish: lunacja f
• Portuguese: lunação (pt) f
• Russian: лу́нный ме́сяц (ru) m (lúnnyj mésjac), лунация f (lunacija)

Anagrams

• Lutonian, Ultonian