from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having three unequal axes that intersect obliquely
from the GNU version of the Collaborative International Dictionary of English
- adj. Having unequal oblique axes.
from The Century Dictionary and Cyclopedia
- Without right angles.
- In mineralogy, having unequal oblique axes; triclinic: as, anorthic feldspar.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having three unequal crystal axes intersecting at oblique angles
Sorry, no etymologies found.
In the sixth and last system, the triclinic -- or anorthic, or asymmetric -- the axes are again three, but in this case, none of them are equal and none at right angles.
The mineral was named (from [Greek: axinê], an axe) by R.J. Haüy in 1799, on account of the characteristic thin wedge-like form of its anorthic crystals.