omar
Proposed by a contributor, not yet supported by evidence.
Also seen as: omars
A glacial erratic piece of (typically smooth) dark siliceous greywacke that exhibits a hemispherical pit or hole (as a result of selective dissolution of carbonate concretions within the greywacke), originating in the Omarolluk Formation and carried by glaciers throughout Canada and the United States.
Noun
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “omar” mean?
A glacial erratic piece of (typically smooth) dark siliceous greywacke that exhibits a hemispherical pit or hole (as a result of selective dissolution of carbonate concretions within the greywacke), originating in the Omarolluk Formation and carried by glaciers throughout Canada and the United States.
Is “omar” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.