Dictionary
thresh•old
Pronunciation: (thresh'ōld, thresh'hōld), [key]—
n.
1. the sill of a doorway.
2. the entrance to a house or building.
3. any place or point of entering or beginning:
the threshold of a new career.
4. Also called
limen. Psychol., Physiol. the point at which a stimulus is of sufficient intensity to begin to produce an effect:
the threshold of consciousness; a low threshold of pain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.