spiræidæ

pl. [Lat. spire (a); Lat. fem. pl. adj. suff. -idœ.] Bot.: A family of Rosacese. Calyx tube herbaceous, fruit a ring of follicles, seeds not winged. spi-ræ-in, subst. [Mod. Latin spire (a); -in ( Chem .).] Chem. C30H30O14(?). A coloring ma extracted from the flowers of Spirœa ulmaria by ether. It is soluble in alcohol and ether, the solutions being of a yellow crystalline powder, insoluble in water, a deep green color when concentrated, yellow when dilute. Its alcoholic solution forms a yellow precipitate with baryta-water, crimson with lead acetate, dark green with ferrous salts, and black with ferric salts. spir-al (1), a. [SPIRE (1), s.] Pointed or shaped like a spire.