Definition of lunar in US English:

lunar

adjective

  • Of, determined by, or resembling the moon.

    ‘a lunar landscape’
    • ‘The two ships would dock in orbit, and propellants would transfer into the lunar craft.’
    • ‘The Kingdom of Nepal functions on two separate kinds of calendars - solar and lunar.’
    • ‘Soon your smooth pool bottom will be a lunar landscape of ridges and foot prints.’
    • ‘It is caused by the earth moving between the sun and the moon, casting a shadow over the lunar surface.’
    • ‘As the lunar disk cleared the horizon, it appeared that a chunk had been taken out of its bottom.’
    • ‘So even during total lunar eclipse, the lunar disk is not completely dark.’
    • ‘Mountains of rubbish are piled up to form a landscape that is almost lunar in its desolation.’
    • ‘The Chinese New Year is based on the lunar calendar and so varies from year to year.’
    • ‘The early Apollo missions focused on learning how to work in the lunar environment.’
    • ‘He did propose the setting up of an observatory to provide accurate lunar data in his attempts to convince the commissioners.’
    • ‘About a quarter of the lunar diameter was eclipsed, and re-emergence occurred about a quarter of an hour before sunrise.’
    • ‘It is certainly wild, even deserted in most places, but the stark lunar landscape is only part of a rich and varied wilderness.’
    • ‘Water on the lunar surface would be very helpful in the creation of permanent bases on the Moon.’
    • ‘During the voyage he experimented with the lunar position method of determining longitude.’
    • ‘Samples of moon rock and lunar dust landed at a Silsden primary school last week.’
    • ‘The Moon has no atmosphere, so a lunar base must be airtight and provide breathable air.’
    • ‘The first distinction, as we have already seen in Chapter 1, is between lunar and solar eclipses.’
    • ‘He is honoured by having a large lunar crater named after him.’
    • ‘Apollo was not followed by a lunar base, even though much remains to be explored on the Moon.’
    • ‘There was only so much our scientists could do with lunar rocks or soil samples.’
    bare, exposed, desolate, stark, arid, desert, denuded, open, empty, windswept
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Origin

Late Middle English: from Latin lunaris, from luna ‘moon’.

Pronunciation

lunar

/ˈlo͞onər//ˈlunər/