solid

Reading level: hard

Estimated CEFR level: B1 — Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun matter that is solid at room temperature and pressure
  2. noun the state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape
  3. noun a three-dimensional shape

Etymology

From Middle English solide, borrowed from Old French solide, from Latin solidus (“solid”), from Proto-Indo-European *solh₂-i-dʰ-o-s (“entire”), suffixed form of root *solh₂- (“integrate, whole”). Doublet of sol, sold, soldo, solidus, sou, and xu.

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