encairite, eukairite

[ Ger. eukairit, from Gr.eukairos =seasonable: eu = good, and kairos the right point of time. So named by Berzelius, because he found it opportunely soon after the discovery of the metal selenium.] Min .: A soft mineral easily cut by the knife; color between silver-white and lead-gray, luster metallic, structure ma ive and granular, or in black metallic films. Composition: Selenium, 31.6; copper, 25-3; silver, 43'1 = 100. Found in Sweden, Chili, . (Dana.) eu-căl-ŷn, s . [Eng., ., eucal ( yptus ); -in .] Chem.: An unfermentable sugar, which separates in the fermentation of Melitose (the sugar of Eucalyptus). It is a thick syrup, which polarizes to the right, and does not reduce copper solution. eu-cal-yp-tene, s. [Eng., ., eucalypt ( us ); -ene ( Chem .) (q. v.).] Chem.: A terpene, C10H16, contained in the volatile oil of Eucalyptus globulus . Eucalypt ene boils at 172°. By the action of iodine it is converted into cymene (q. v.), C10H14. eu-ca-lyp-tô-cri-ni-dæ, s . pl . [Modern Latin eucalyptocrin (us); and Lat. fem. pl. adj. suff. Palæont .: A family of Crinoideans, type Eucalyp tocrinus (q. v.). -ida. eucharist eu-ca-lyp-to-cri-nūs, s. [Gr. eu =well; kalyptos = covered, and krinon =a lily.] [Def.] Paleont .: The typical genus of the family Eucalyptocrinidse. The calyx is inverted upon itself whence the name of the genus. Range in time, Silurian to the Devonian rocks.