aphanitic

(redirected from aphaniticly)
Also found in: Dictionary.

aphanitic

[‚af·ə′nid·ik]
(petrology)
Referring to the texture of an igneous rock in which the crystalline components are not distinguishable by the unaided eye.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.