butterfly stroke

English Thesaurus

1. a swimming stroke in which the arms are thrown forward together out of the water while the feet kick up and down (noun.act)

hypernym	:	swimming stroke,
definition	:	a method of moving the arms and legs to push against the water and propel the swimmer forward (noun.act)

part holonym	:	dolphin kick,
definition	:	a swimming kick; an up and down kick of the feet together (noun.act)