Meaning of orthorhombic

or•tho•rhom•bic

Pronunciation: (ôr"thu-rom'bik), [key]
— adj. Crystall.
  1. noting or pertaining to a system of crystallization characterized by three unequal axes intersecting at right angles; rhombic; trimetric.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.