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petunia

(Encyclopedia)petunia, any plant of the genus Petunia, South American herbs of the family Solanaceae (nightshade family). The common garden petunias, planted also in window boxes, are all considered hybrids of whit...

Colby College

(Encyclopedia)Colby College, at Waterville, Maine; coeducational; est. 1813, opened 1818. The school, principally a liberal arts college, adopted its present name in 1899. Its library includes the papers of Edwin A...

indium

(Encyclopedia)indium ĭnˈdēəm [key], a metallic chemical element; symbol In; at. no. 49; at. wt. 114.818; m.p. 156.6℃; b.p. about 2,080℃; sp. gr. 7.31 at 20℃; valence +1, +2, or +3. Indium is a soft, malle...

lapis lazuli

(Encyclopedia)lapis lazuli lăpˈĭs lăzˈo͝olē [key], gem, deep blue, violet, or greenish blue in color and usually flecked with yellow iron pyrites. It is composed of lazurite, a complex sodium aluminum silica...

tanzanite

(Encyclopedia)tanzanite tănzănˈīt [key], beautiful gemstone discovered in 1967 in the Umba Valley near the Usambara Mts. in Tanzania, a precious variety of the mineral zoisite, a calcium aluminum silicate. Zois...

iodine

(Encyclopedia)iodine īˈədīn, –dĭn [key] [Gr.,=violet], nonmetallic chemical element; symbol I; at. no. 53; at. wt. 126.90447; m.p. 113.5℃; b.p. 184.35℃; sp. gr. 4.93 at 20℃; valence −1, +1, +3, +5, o...

Abbey Theatre

(Encyclopedia)Abbey Theatre, Irish theatrical company devoted primarily to indigenous drama. W. B. Yeats was a leader in founding (1902) the Irish National Theatre Society with Lady Gregory, J. M. Synge, and A. E. ...

Frémiet, Emmanuel

(Encyclopedia)Frémiet, Emmanuel ĕmänüĕlˈ frāmyāˈ [key], 1824–1910, French sculptor; pupil and nephew of Rude. He was noted for his vigorous characterizations of animal and historical figures. His equestr...

amethyst

(Encyclopedia)amethyst ămˈəthĭst [key] [Gr.,=non-drunkenness], variety of quartz, violet to purple in color, used as a gem. It is the most highly valued of the semiprecious quartzes. It is associated with a num...

Böttger, Johann Friedrich

(Encyclopedia)Böttger, Johann Friedrich yōˈhän frēˈdrĭkh bötˈgər [key], 1682–1719, German chemist and originator of Dresden china. When the Swedish invasion of Saxony occurred (1706), Böttger and his a...