Hypertext Webster Gateway: "mawworm"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Mawworm \Maw"worm`\, n. [Maw the belly + worm.] (Zo["o]l.)
(a) Any intestinal worm found in the stomach, esp. the common
round worm ({Ascaris lumbricoides}), and allied species.
(b) One of the larv[ae] of botflies of horses; a bot.
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