variants or petri- or petro-
1
a
: stone : rock
petrescent
Petricola
petrogenesis
b
: petroleum
petroporphyrins
2
: of or relating to the petrous portion of the temporal bone and
petrohyoid

Word History

Etymology

Middle French petr-, petri- & Latin petr- & New Latin petro-, from Greek petr-, petro-, from petros stone & petra rock

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Dictionary Entries Near petr-

Cite this Entry

“Petr-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/petr-. Accessed 18 May. 2024.

Kids Definition

petr-

combining form
variants or petri- or petro-
1
: stone : rock
2
: petroleum
petrochemical
Etymology

Greek petros "stone" and petra "rock"

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