Mare tranquillitatis

See also: Mare Tranquillitatis and mare Tranquillitatis

Latin

Alternative forms

• Mare Tranquillitatis, mare Tranquillitatis, Mare tranquilitatis, Mare Tranquilitatis, mare Tranquilitatis

Etymology

mare +‎ tranquillitatis. From Mare Tranquilitatis (“spelled with one-"L"”). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum novum.

Proper noun

Mare tranquillitatis

1. (planetology) The Sea of Tranquility (“Mare Tranquillitatis”): A basin in Nearside, Moon, Earth, Solar System;