What do a.m. and p.m. stand for?

physical change

noun, Chemistry
a usually reversible change in the physical properties of a substance, as size or shape:
Freezing a liquid is a physical change.
Compare chemical change. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for physical change
  • The sight of a lion induces physical changes that prepare a zebra to flee.
  • Suggesting medicine will help does result in physical changes in the brain.
  • The issue isn't just one that can be fixed with a small line of coding, it requires an actual physical change to the map models.
  • The only chemical and physical changes result from the heat generated.
  • The other physical change is the size.
  • The process of chemical and physical change in deposited sediment during its conversion to rock.
  • I've also noticed a physical change in the artists.
  • The capacity to do work or cause physical change; energy, strength, or active power: the force of an explosion.
  • If the physical change causes a change in principle also, invention is present.
  • Real estate values are changing constantly even when there's no physical change in the property itself.
Contemporary definitions for physical change

any process involving a substance's change from one state (gas, liquid, solid) to another without alteration of the chemical composition; cf. chemical change


Freezing water is a physical change because both water and ice are H2O.

See chemical change's 21st Century Lexicon
Copyright © 2003-2014, LLC
Cite This Source

Word of the Day

Word Value for physical

Scrabble Words With Friends

Quotes with physical change