Lagomorpha Syllabification: (Lag·o·mor·pha)Pronunciation: /ˌlagəˈmôrfə/ ZoologyDefinition of Lagomorpha an order of mammals that comprises the hares, rabbits, and pikas. They are distinguished by the possession of double incisor teeth, and were formerly placed with the rodents. Origin:modern Latin (plural), from Greek lagōs 'hare' + morphē 'form'Lagomorpha in other Oxford dictionaries Definition of Lagomorpha in the British & World English dictionary