snail
Americannoun
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any mollusk of the class Gastropoda, having a spirally coiled shell and a ventral muscular foot on which it slowly glides about.
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a slow or lazy person; sluggard.
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Machinery. a cam having the form of a spiral.
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Midwestern and Western U.S. a sweet roll in spiral form, especially a cinnamon roll or piece of Danish pastry.
noun
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any of numerous terrestrial or freshwater gastropod molluscs with a spirally coiled shell, esp any of the family Helicidae, such as Helix aspersa ( garden snail )
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any other gastropod with a spirally coiled shell, such as a whelk
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a slow-moving or lazy person or animal
Other Word Forms
Etymology
Origin of snail
before 900; Middle English snail, snayl ( e ), Old English snegel; cognate with Low German snagel, German (dial.) Schnegel
Explanation
A snail is a small mollusk with a spiral-shaped shell. Snails are famous for moving very slowly, and for leaving a trail of slime behind them. If you see snails on a restaurant menu, they're more likely to be listed as escargot, or "edible snail" in French. There are three general categories of snails: land snails, sea snails, and freshwater snails. They all have shells that they can retreat within—without a shell, a similar animal is instead called a slug. Snail can be traced back to the diminutive form of the Old English snaca, "snake" or "creeping thing."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Sitting at the workbench in front of a small jet of flame, Vittorio’s son, Davide, shaped a speck of glass into a delicate snail to add to the store’s collection of glass flora and fauna.
From The Wall Street Journal • May 2, 2026
Inside are nine species of small yellow Polynesian tree snails, including the rarest of the lot, the Garrett's tree snail.
From BBC • Apr. 28, 2026
Several snail species live at the waterfall, including the more common rock fossaria.
From Slate • Apr. 27, 2026
Last year also happened to be the year I became a full-on snail mail obsessive.
From Salon • Jan. 27, 2026
I wanted to buy the whole basket and set that one snail free.
From "Purple Hibiscus" by Chimamanda Ngozi Adichie
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.