Hypertext Webster Gateway: "fluidal"
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}.
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