petro-, petr-, petri-, peter-
(Greek > Latin: stone, rock)
petrophile
petrophilous
petrophilous, petrophile, petrophily
In biology, thriving on rocks or in rocky habitats.
petrophily
petrophyte
petrophytic
petrosectomy
petroseline: parsley
Of or related to parsley.
petrosphere
petrous
saltpeter
Potassium nitrate; used especially as a component of gunpowder or as a food preservative.
Saltpeter is a borrowing of Old Middle English salpetre [about A.D. 1300]; a borrowing of Old French, salpetre, a learned borrowing from Medieval Latin; also borrowed directly from Medieval Latin sal petrae,, "salt of rock"; (Latin sal, "salt" + petrae, genitive of Latin petra, "rock"). So called because it appears as a saltlike encrustation on rocks.
saltpetre
A crust similar to salt that forms on rocks.
Related "stone, rock" word families:
lapid-;
litho-;
saxi-;
stele-.
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