old moon

noun

1. waning moon.

old moon

noun

1. a phase of the moon lying between last quarter and new moon, when it appears as a waning crescent
2. the moon when it appears as a waning crescent
3. the time at which this occurs

Word History and Origins

Origin of old moon¹

First recorded in 1580–90

Example Sentences

Earthshine is also called “the old moon in the new moon’s arms”—a lovely turn of phrase that not nearly enough astronomers use.

From Scientific American

The expedition also collected some especially old moon rocks.

From Washington Post

“Communist leaders? Nonsense. They’re not leaders of anything! They’re just poor farmers listening to that Communist garbage. Especially old Moon. He’s just a drunkard. He’s no more a Communist leader than your ancient granny. Chief Song, you should release those poor wretches and let them go home.”

From Literature

A Los Angeles-area start-up founded by a veteran spaceflight robotics engineer unveiled this month its full-scale, working prototype for a next-generation lunar rover that is just as fast as NASA’s old “moon buggy” but is designed to do much more.

From Washington Post

When the last survivors of the human race — huddled on the Third Reich’s old moon base — realize their colony’s on the brink of collapse, Obi leads an expedition to obtain a new power source from the fabled underground home of the alien Vril.

From Los Angeles Times