[f. SPICULA, etc.: see -ATION.] Formation into a spicule or spicules.
1880. Jrnl. Linn. Soc., XV. 150. Sketches of the spiculation of another sponge.
1900. B. D. Jackson, Gloss. Bot. Terms, 247. Spiculation, Nylander’s term for a hyphal constriction in spore-formation, the extremity being left as a spicule.
