penecontemporaneous

[ pee-nee-kuh n-tem-puh-rey-nee-uh s ]
/ ˌpi ni kənˌtɛm pəˈreɪ ni əs /

adjective Geology.

formed during or shortly after the formation of the containing rock stratum: penecontemporaneous minerals.

Origin of penecontemporaneous

First recorded in 1900–05; pene- + contemporaneous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019