secondary enlargement

secondary enlargement

[′sek·ən‚der·ē in′lärj·mənt]
(mineralogy)
Overgrowth by chemical deposition on a mineral grain of additional material of identical composition in optical and crystallographic continuity with the original grain; crystal faces characteristic of the original mineral often result. Also known as secondary growth.
Mentioned in ?
References in periodicals archive ?
Tests revealed some secondary enlargement of the heart and found her pacemaker's batteries had run out and needed a new generator.
Cranial CT demonstrated a left cerebral hemiatrophy and a secondary enlargement of the left lateral ventricle.