Assertion: flask's bottom | /r/HasProperty | rounded
Facets:
Source sentences:
text: Flasks can have either rounded or flat bottoms.
text: The standard Schlenk flask is a round bottom, pear-shaped, or tubular flask with a ground glass joint and a side arm.
text: Most volumetric flasks have flattened bottoms so that they can be placed on a lab bench or other surface, though some volumetric flasks have rounded bottoms and must be handled with special protective equipment.