MEATUS

(Lat.), n. m. Me(me2)-at(a3t)'u3s(u<s). Gen., -at'us. Gr., 68os, iropos. Fr., meat. Ger., Gang, Zugang. It., Sp., meato. 1. A canal or pa age. 2. In botany, one of the spaces between the walls of the cells of which cellular ti ue is formed. [B. 1 (a, 35): C.] Auditory m. Lat., m. auditor i us. Fr., meat audit if. Ger., Gehorgang. The external or internal auditory canal, [a. 34.] Caeci m. Of Harvey, a term translated by Will is "unknown pa ages," "inscrutable pa ages," etc.; but Nock ("Brit. Med. Jour.," June 24, 1882, p. 960) a erts that Harvey meant "imbedded" pa ages, referring to certain supposed conduits in the saeptum of the heart. Cartilaginous (auditory) m. Lat., TO. (auditor i us) cartilaginous. Fr., meat (ou canal) audit if cartilagineux. Ger., knorpeliger Gehorgang. A tubular continuation of the auricle directed inward, and forming the outer portion of the external auditory canal. It is not cartilaginous in its whole extent, but consists of a cartilaginous channel, formed at its upper and back part into a tube by a membranous layer connected with the lining membrane of the canal. It is attached at its inner end to the o eous m. by flexible connective ti ue. [F, 32.] External auditory m. See External auditory CANAL. Inferior m. of the nose. Lat., TO. narium inferior. The lowermost of the three divisions of the nasal cavity. It is longer than the others, and lies between the inferior spongy bone and the floor of the nasal cavity. In its fore part is the orifice of the nasal duct. [C.] Intercellular m. See M. (2d def.). Internal auditory m. See Internal auditory CANAL. M. acustivus extern us. See External audiO, no; O, not; Os, whole; Th, thin; Th", the; U, like oo in 285 [s. 723]