Skip to main content
Glite Dictionary
water beetle

water beetle

1 4.1
An insect with a smooth oval body and flat back legs for swimming
  • noun
translation icon : escarabajo acuático
  • The child pointed out a water beetle gliding across the water, fascinated by its smooth, oval body.

Examples

  • In the wetland, many creatures thrive, including the water beetle, which uses its flattened hind legs to swim well.

  • Shaking the mud out of his hair, he scanned the water surface carefully, searching for the water beetle.

    Fiction book (1998)

  • Then he watched a water beetle scoot around on the smooth surface between the clouds, occasionally crossing the white line left by the plane.

    Fiction book (1998)

  • The sweep brought up several hundred tiny organisms—mostly water beetles, slugs, and fish the size of BBs.

    Academic text (1993)

  • While swimming in the pond, I spotted a water beetle darting gracefully beneath the surface.

Synonyms

Dytiscidae
vswater beetle
  • Specialized
9.9

Large water beetles that swim in fresh water and eat other animals

is a general term for aquatic beetles rather than a specific family
whirligig beetle
vswater beetle
  • Specialized
9.8

A small beetle that swims quickly in circles on the water

is adapted for swimming with flattened hind legs rather than surface circling

Surface Forms

water beetle singular
water beetles plural

Morphology

water + beetle

The meaning 'an aquatic beetle' is directly and predictably built from 'water' (associated with aquatic environments) + 'beetle' (an insect), so a learner who knows both words can infer the compound's meaning. This noun-compound pattern (N + N indicating a subtype or habitat) is cross-linguistically common and follows regular English compounding rules, making it transparent to B1 learners.

Etymology

The compound noun water beetle is a simple name: it describes a beetle that lives in water and swims with flat rear legs. So today it simply means 'a beetle that lives in water'.