Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

resonance

play
noun res·o·nance \ˈrez-ən-ən(t)s, ˈrez-nən(t)s\

Medical Definition of resonance

  1. 1:  a quality imparted to voiced sounds by vibration in anatomical resonating chambers or cavities (as the mouth or the nasal cavity)

  2. 2:  the sound elicited on percussion of the chest

  3. 3:  the conceptual alternation of a chemical species (as a molecule or ion) between two or more equivalent allowed structural representations differing only in the placement of electrons that aids in understanding the actual state of the species as an amalgamation of its possible structures and the usually higher-than-expected stability of the species

  4. 4a:  the enhancement of an atomic, nuclear, or particle reaction or a scattering event by excitation of internal motion in the systemb:  magnetic resonance—see electron spin resonance





Seen and Heard

What made you want to look up resonance? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 11, 2016

the holder of an office

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

2.2 pounds 100 pounds 196.5 pounds 16.96 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ