— momentariness , n.
/moh"meuhn ter'ee/ , adj.
1. lasting but a moment; very brief; fleeting: a momentary glimpse.
2. that might occur at any moment; ever impending: to live in fear of momentary annihilation.
3. effective or recurring at every moment; constant.
[ 1425-75; late ME momentare momentarius. See MOMENT, -ARY ]