JETIOLOGICAL

adj.?j’i2k-a%l. Fr., étiologique. Ger., etic log each: It., etiologico. Sp., etioldgico. Pertaining to ætiology. [L, 50.] ÆTIOLOGICALLY, adv. ætiology. [D, 50.] ÆTIOLOGIST, n. F?t-i-o"l'o-jitst. Lat., etiologus. studies the causes of disease. [A, 322.] ÆTIOLOGY, n.?-07l/0-ji?, Gr,, aitıoloyla (from airia, a cause). Lat., ætiologi Fr., étiologie. Ger., Aetiologie. it., etiologia, eziologia.., etiologia, 1. That branch of pathology which deals with the causes of disease. [C.] 2. In biology, the science of the causes of biological phenomena and of their relation to general physical laws. [A, 12.] JZETION (Lat.), n.n. 'e?)-shi7(ti7)-03n. See ÆTIA. ÆTIONYMOUS, adj. ’i?m-u8s. Gr., aireävvyos. Lat., œtionymus. Named from the cause (said of diseases, e. g., lead colic, mercurialism, etc.). [A, 322.]