Pronunciation: (rOO"du-men'tu-rē, -trē), [key]
1. pertaining to rudiments or first principles; elementary: a rudimentary knowledge of geometry.
2. of the nature of a rudiment; undeveloped or vestigial.
3. primitive. Also,ru"di•men'tal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.