phagedena, phagedena

[Lat. phage eye, face, countenance. [PHACA.] Palæont.: The single genus of the Phacopidse (q. v.). phā-co-scope, phā-ko-scope, s. [Gr. phakos anything lenticular, and skopeō -to look.] Optics : An instrument devised by Helmholtz for observing the reflected images seen in the human eye when it is being accommodated to a near object. It is made by a dark room with a candle inside and apertures for the observed and observing eyes. phæ-ăc-tin-ite, s. [Gr. phaios =dusky: aktis a ray (gen it. aktinos ), and Eng. suff. -ite ( Min .).] Min.: A mineral occurring in radiated ma es in Na au, Germany. Hardne , 2; specific gravity 2-997-3-057; color, grayish-brown. Analysis yielded: Silica, 35-5; alumina, 16.9; sesquioxide of iron, 25.4: protoxide of manganese, 14; magnesia, 53; lime, 72; water, 81-99-8. Found in a rock called Iserite, and is probably an altered hornblende. appear, and karpos =fruit.] phæ-no-car-pous, adj . [Greek phainomai =to Bot.: Bearing a fruit which has no adhesion with surrounding parts.