hadean

Other forms of hadean

plural

hadeans·

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about hadean

What does hadean mean?

hadean means "the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life". That is the primary sense; the word has 2 in total, listed in full on this page.

How many syllables are in hadean?

hadean has 3 syllables: ha-de-an. The stress falls on "ha".

What is another word for hadean?

Close synonyms include Hadean time, Hadean eon, Hadean aeon, Priscoan, Priscoan eon. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is hadean a common word?

hadean is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.