AETHIOPS MINERAL
Æ"thi*ops min"er*al. (Chem.)
Defn: Same as Ethiops mineral. [Obs.]
AETHOGEN
Æth"o*gen, n. Etym: [Gr. -gen.] (Chem.)
Defn: A compound of nitrogen and boro
AETHRIOSCOPE
Æ"thri*o*scope, n. Etym: [Gr.
Defn: An instrument consisting in part of a differential thermometer. It is used for measuring changes of temperature produced by different conditions of the sky, as when clear or clouded.
AETIOLOGICAL
Æ`ti*o*log"ic*al, a.
Defn: Pertaining to ætiology; assigning a cause.
— Æ`ti*o*log"ic*al*ly, adv.
AETIOLOGY
Æ`ti*ol"o*gy, n. Etym: [L. aetologia, Gr. étiologie.]
1. The science, doctrine, or demonstration of causes; esp., the investigation of the causes of any disease; the science of the origin and development of things.