Webster’s Revised Unabridged Dictionary · 1913
Mawworm
Maw′worm′ (·wûrm′), n. [Maw the belly + worm.] (Zoöl.) (a) Any intestinal worm found in the stomach, esp. the common round worm (Ascaris lumbricoides), and allied species. (b) One of the larvæ of botflies of horses; a bot.