Added 10 October 2026 bacilliform adjective Categories: Describing WordsObscure Words adjective ! Definition from WordNet 3.1, Princeton University. More about bacilliform at Wordnik → Where our words come from → Formed like a bacillus. Related Words: baculiformbacillaryrod-shapedbaccilarformedbacillarbacillariaceouscoccobacilliformbacilliferousfungilliformtuberculiformboletoid Back to today's word