Definition of "filiform" [fil•i•form]

• Having the form of or resembling a thread or filament. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "There are at least five known types of warts that are caused by a number of HPV strains: common warts (often found on the hands and scalp); filiform warts (common in those who are overweight and often appear on the face and armpits); periungual warts (usually appearing around the fingernails); flat warts (smaller than the common warts and appear in clusters on the hands and legs); and plantar warts."
• "Amongst the bushes here, a HAKEA, with simple filiform mucronulate leaves without flower, occurred, loaded with oblong hard galls resembling dry plums."
• "Constantine, I discovered on the edges of the pigmented spherical bodies in the blood of a patient suffering from malaria, filiform elements resembling flagellae which were moving very rapidly, displacing the neighbouring red cells."