Imăus
（τὸ Ἴμαον ὄρος). The name of a great mountain range of Asia; one of those terms which the ancient geographers appear to have used indefinitely for want of exact knowledge. In its most definite application, it appears to mean the western part of the Himalaya, between the Paropamisus and the Emodi Montes; but when it is applied to some great chain, extending much farther to the north and dividing Scythia into two parts—Scythia intra Imaum and Scythia extra Imaum—it must either be understood to mean the Altai Mountains, or else some imaginary range, which cannot be identified with any actually existing mountains.