Antiphrynolysin is a challenging word to spell. It comprises ant- meaning "against," phryno- meaning "toad," and lysin meaning "destruction" or "breaking." When pronounced, it sounds like "an-tih-fri-noh-lye-sin" with the accent on the third syllable. Its IPA phonetic transcription is /æn.tɪ.fraɪ.noʊ.ˈlaɪ.sɪn/. Antiphrynolysin is an antibody that helps against the harmful effects of toad venom. Although difficult to spell, this word is vital in the field of medicine and research.
An antivenin counteracting the poison of the toad.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.