| medio- | Middle, median. Origin: L. Medius (05 Mar 2000) |
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| mediocarpal | 1. Relating to the central part of the carpus. Synonym: mediocarpal. 2. Denoting the articulation between the two rows of carpal bones. Synonym: carpocarpal. Synonym: mediocarpal, mesocarpal. (05 Mar 2000) |
| medioccipital | Relating to the central portion of the occiput. Synonym: medioccipital. (05 Mar 2000) |
| mediocolic sphincter | A physiological sphincter located midway in the ascending colon. (05 Mar 2000) |
| mediodens | A supernumerary tooth located between the two maxillary central incisors. Origin: medio-+ L. Dens, tooth (05 Mar 2000) |
| mediodorsal | Relating to the median plane and the dorsal plane. (05 Mar 2000) |
| mediodorsal nucleus | A large, composite cell group in the dorsomedial region of the thalamus having reciprocal connections with the entire extent of the frontal cortex anterior to the motor cortex (area 4) and premotor cortex (area 6). The afferent connections of the medial nucleus also include projections from the olfactory cortex and amygdala. Synonym: nucleus medialis thalami, dorsomedial nucleus, mediodorsal nucleus. (05 Mar 2000) |
| mediolateral | Relating to the median plane and a side. (05 Mar 2000) |
| medionecrosis | Necrosis of a tunica media. (05 Mar 2000) |
| medionecrosis aortae idiopathica cystica | Loss of elastic and muscle fibres in the aortic media, with accumulation of mucopolysaccharide, sometimes in cystlike spaces between the fibres; a disease of unknown cause, which may be inherited and which predisposes to dissecting aneurysms. Synonym: Erdheim disease, medionecrosis aortae idiopathica cystica, medionecrosis of the aorta, mucoid medial degeneration. (05 Mar 2000) |
| medionecrosis of the aorta | Loss of elastic and muscle fibres in the aortic media, with accumulation of mucopolysaccharide, sometimes in cystlike spaces between the fibres; a disease of unknown cause, which may be inherited and which predisposes to dissecting aneurysms. Synonym: Erdheim disease, medionecrosis aortae idiopathica cystica, medionecrosis of the aorta, mucoid medial degeneration. (05 Mar 2000) |
| mediopubic reflex | Contraction of the adductors of the thigh upon tapping the pubic bone near the symphysis. (05 Mar 2000) |
| mediostapedial | <anatomy> Pertaining to that part of the columella of the ear which, in some animals, connects the stapes with the other parts of the columella. The mediostapedial part of the columella. Origin: L. Medius middle + E. Stapedial. Source: Websters Dictionary (01 Mar 1998) |
| mediotarsal | Relating to the middle of the tarsus. Synonym: mediotarsal, mesotarsal. (05 Mar 2000) |
| mediotarsal amputation | Amputation through the midtarsal joint; i.e., between the tarsal navicular and the calcaneocuboid joints. Synonym: mediotarsal amputation. (05 Mar 2000) |
| linea medio-axillaris | An alternate term for midaxillary line, midaxillary line. (05 Mar 2000) |
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