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lunar US English

Of, determined by, relating to, or resembling the moon

lunar day US English

The interval of time between two successive crossings of the earth’s meridian by the moon (roughly 24 hours and 50 minutes)

lunar cycle US English

Another term for Metonic cycle.

lunar month US English

A month measured between successive new moons (roughly 2912 days)

lunar node US English

Each of the two points at which the moon’s orbit cuts the ecliptic

lunar year US English

A period of twelve lunar months (approximately 354 days)

lunar caustic US English

Silver nitrate, especially fused in the form of a stick

lunar eclipse US English

An eclipse in which the moon appears darkened as it passes into the earth’s shadow

lunar module US English

A small craft used for traveling between the moon’s surface and an orbiting spacecraft formerly known as lunar excursion module or LEM

lunar distance US English

The angular distance of the moon from the sun, a planet, or a star, used in finding longitude at sea

lunar observation US English

A measurement of the position of the moon in order to calculate longitude from lunar distance

lunar roving vehicle US English

A vehicle designed for use by astronauts on the moon’s surface, used on the last three missions of the Apollo project

sublunar US English

Within the moon’s orbit and subject to its influence

lunar rover in lunar roving vehicle US English

A vehicle designed for use by astronauts on the moon’s surface, used on the last three missions of the Apollo project

semilunar US English

Shaped like a half-moon or crescent