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Boulder vs Pebble - What's the difference?

boulder | pebble |

Pebble is a synonym of boulder.



In geology terms the difference between boulder and pebble

is that boulder is a particle greater than 256 mm in diameter, following the Wentworth scale while pebble is a particle from 4 to 64 mm in diameter, following the Wentworth scale.

As nouns the difference between boulder and pebble

is that boulder is a large mass of stone detached from the surrounding land while pebble is a small stone, especially one rounded by the action of water.

As verbs the difference between boulder and pebble

is that boulder is to engage in bouldering while pebble is to pave with pebbles.

boulder

English

Alternative forms

* bowlder, bulder (dated)

Noun

(en noun)
  • A large mass of stone detached from the surrounding land.
  • (geology) A particle greater than 256 mm in diameter, following the Wentworth scale

    • Derived terms

    * bouldering

    Verb

    (en verb)
  • To engage in bouldering
  • *
  • *
  • *

    • Anagrams

    *

    pebble

    English

    Noun

    (en noun)
  • A small stone, especially one rounded by the action of water.
  • * Shakespeare
    • the pebbles on the hungry beach
  • * Milton
    • children gathering pebbles on the shore
  • (geology) A particle from 4 to 64 mm in diameter, following the Wentworth scale
  • (curling) A small droplet of water intentionally sprayed on the ice that cause irregularities on the surface.
  • Transparent and colourless rock crystal.
    • Brazilian pebble

    Verb

  • To pave with pebbles.
  • (curling) To deposit water droplets on the ice. e.g. to pebble the ice between games.