'QED' definitions:

Definition of 'QED'

From: WordNet
noun
A relativistic quantum theory of the electromagnetic interactions of photons and electrons and muons [syn: quantum electrodynamics, QED]

Definition of 'QED'

From: GCIDE
  • QED \QED.\ (k[=u]"[=e]*d[=e]"), n. Quantum electrodynamics. [abbrev.] [PJC] Q.E.D

Definition of 'QED'

From: GCIDE
  • QED \Q.E.D\, QED \QED\(k[=u]"[=e]*d[=e]"), interj. [From Latin, quod erat demonstrandum, i.e. which was demonstrated.] Which was demonstrated; -- a phrase used after the conclusion of some line of reasoning, especially in mathematical or logical proofs. [abbrev.] [PJC]

Definition of 'QED'

From: GCIDE
  • QED \Q.E.D\, QED \QED\(k[=u]"[=e]*d[=e]"), interj. [From Latin, quod erat demonstrandum, i.e. which was demonstrated.] Which was demonstrated; -- a phrase used after the conclusion of some line of reasoning, especially in mathematical or logical proofs. [abbrev.] [PJC]