pleion

noun
plei·​on | \ ˈplīˌän\
plural -s

Definition of pleion

: a region in meteorology of positive departure from the normal of an element (as pressure, temperature, rainfall)

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Other Words from pleion

pleionian \ (ˈ)plī¦ōnēən \ adjective

History and Etymology for pleion

New Latin, from Greek pleiōn more, greater

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