'Fluidal structure' definitions:
Definition of 'Fluidal structure'
From: GCIDE
- Fluidal \Flu"id*al\, a. Pertaining to a fluid, or to its flowing motion. [1913 Webster]
- Fluidal structure (Geol.), the structure characteristic of certain volcanic rocks in which the arrangement of the minute crystals shows the lines of flow of thew molten material before solidification; -- also called {fluxion structure}. [1913 Webster]