astronomical twilight
astronomical twilight · astronomical twilights
The period in which the sun is between 12° and 18° below the horizon in the morning…The period in which the sun is between 12° and 18° below the horizon in the morning and evening.
Meaning
1 senses(countable, uncountable)The period in which the sun is between 12° and 18° below the horizon in the morning and evening.
Forms
plural: astronomical twilights| Singular | astronomical twilight |
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regular
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.