WordReference Random House Unabridged Dictionary of American English © 2026
A-ax•is
(ā′ak′sis),USA pronunciation n., pl. A-ax•es (ā′ak′sēz).USA pronunciation [Crystall.]
- Crystallographythe horizontal crystallographic axis passing from front to back. Cf. B-axis, C-axis.
'A-axis' also found in these entries (note: many are not synonyms or translations):