fluidal, a. Geol.
(ˈfluːɪdəl)
[f. fluid n. + -al1.]
Of or resembling a fluid: (see quots.).
| 1879 Dana Man. Geol. (ed. 3) 65 Igneous rocks sometimes exhibit under the microscope a fluidal texture; that is, the material..shows wavy lines or bands, which are evidence of a former fluid state, and of movement or flowing when in that state. 1893 Geikie Geol. (ed. 3) 100 Streaked [structure]..conspicuously shown by the lines of flow in vitreous rocks (flow-structure, fluxion-structure, fluidal-structure). |