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fluidal |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Fluidal \Flu"id*al\, a. Pertaining to a fluid, or to its flowing motion. {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}.