ENGLISH
REFERENCE

snail

n. · v.
US //ˈsneɪɫ// UK //snˈeɪl// snail
  1. 1 the animal (n.)
    A2 Elementary

    a small, soft animal with a round shell that moves very slowly.

    a gastropod mollusc with a coiled shell into which it can retract its body.

    Example

    After the rain, dozens of snails appeared on the garden path.

    Example

    The biologist noted that the snail leaves a trail of mucus to reduce friction as it traverses rough surfaces.

    • gastropod
    • mollusc
  2. 2 a slow person (n.)
    B2 Upper Intermediate Informal

    someone who moves or works very slowly.

    a person who moves, acts, or works with excessive slowness.

    Example

    Hurry up, you snail, or we will miss the start of the movie.

    Example

    The manager grew frustrated with the new recruit, calling him a snail because he took twice as long as others to complete the filing.

    • sluggard
    • slowcoach
    • speedster
  3. 3 mechanical part (n.)
    C2 Proficiency Technical Engineering

    a flat, spiral-shaped piece of metal used in machines like clocks.

    a spiral cam or flat metal piece with a curved outline used to provide specific motion to other mechanical parts.

    Example

    The clockmaker carefully adjusted the snail to ensure the chime sounded at the right time.

    Example

    In horology, the snail is a critical component of the striking mechanism, determining the number of times the hammer hits the bell.

  4. 4 to move slowly (v.)
    B2 Upper Intermediate Informal

    to move at a very slow pace.

    to progress or travel at an exceptionally slow speed.

    Example

    Traffic was snailing along the highway due to the heavy snow.

    Example

    The morning commute was frustrating as the bus snailed through the city centre during the peak of the transit strike.

Origin

From Middle English snayl, snail, from the Old English sneġel, from Proto-Germanic *snagilaz. Cognate with Low German Snagel, Snâel, Snâl (“snail”), German Schnegel (“slug”). Compare also Old Norse snigill, from Proto-Germanic *snigilaz.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Idioms1 entry
Related words

Last updated June 20, 2026