pyriform UK /ˈpɪ.ɹɪ.fɔːm/US /ˈpɪɹ.əˌfɔɹm/adjective 1noun 1forms 3 adjective1 •Pear-shaped.Most small worms have a pyriform shape. Larger worms living in unconsolidated sediments are cylindrical and elongate. Those in rock fissures or coral crevices have stouter and more pyriform bodies. — 1992 noun1 •A pyriform object. formspyriforms · more pyriform · most pyriform
