pipi Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. 1 an edible bivalve of eastern Australia Plebidonax deltoides; 2 an edible bivalve of New Zealand Mesodesma novaezelandiae. Example Sentence She could not bring herself to eat the pipi. Synonyms edible bivalve; shellfish; Plebidonax deltoides Antonyms elephant Hear It! Say It! Write It! pipi Switch to cursive Start Share with your friends: