English Explanatory Dictionary

Sea of Tranquility

English dictionary entry

Meanings

name
  1. A basin in Nearside, Moon, Earth, Solar System; location of the first manned moon landing, in 1969.

Word forms

Sea of Tranquility the Sea of Tranquility Sea of Tranquillity

Etymology

Calque of Latin Mare Tranquilitātis (spelled with one L), from Latin mare (“sea”)+tranquilitātis (“tranquility”). 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.

Synonyms

Mare Tranquillitatis

Derived words

Tranquility Base
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