A cupcake whose top section is cut out and replaced on a layer of butter cream, etc. in the approximate shape of a butterfly's wings.

A swimming stroke in which the body is prone, the arms are moved in simultaneous circles, and the feet are kicked up and down.

A ray (fish) of the family Gymnuridae (or, in some systems, the subfamily Gymnurinae).

plural of butterfly ray

A folding pocket knife with two handles counter-rotating around the tang such that, when closed, the blade is concealed within grooves in the handles.

Aglais io, a red butterfly with distinctive large eyespots, of the family Nymphalidae.

plural of butterfly knife

plural of butterfly effect

A small net with attached handle used to collect butterflies and other insect species.

plural of butterfly net