(organic chemistry, in combination) A single isobutyl group in a molecule

A romantic and/or sexual relationship in which the people involved are permitted or tolerated to be available to have additional simultaneous romantic and/or sexual relationships.

An allergy to grass and other pollen which causes cold symptoms in sufferers; hay fever.

A village in Blaenhonddan community, Neath Port Talbot county borough, Wales (OS grid ref SS7799).