Meaning of existential quantifier

ex'isten'tial quan'tifier

Pronunciation: [key]
— Logic. Logic.
  1. a quantifier indicating that the sentential function within its scope is true for at least one value of the variable included in the quantifier. Also calledCf. universal quantifier.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.