Upper motor neuron
upper motor neuron n.
A motor neuron whose cell body is located in the motor area of the cerebral cortex and whose processes connect with motor nuclei in the brainstem or the anterior horn of the spinal cord.
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- Upper palaeolithic
noun 1. the latest of the three periods of the Palaeolithic, beginning about 40 000 bc and ending, in Europe, about 12 000 bc: characterized by the emergence of modern man, Homo sapiens adjective 2. of or relating to this period
- Upper-palatinate
noun 1. See under Palatinate (def 1). Upper Palatinate noun 1. See Palatinate
- Upper-paleolithic
noun 1. See under Paleolithic. adjective 1. (sometimes lowercase) Anthropology. of, relating to, or characteristic of the cultures of the late Pliocene and the Pleistocene epochs, or early phase of the Stone Age, which appeared first in Africa and are marked by the steady development of stone tools and later antler and bone artifacts, engravings […]
- Upper-partial-tone
noun, Music. 1. overtone (def 1).
- Upper-peninsula
noun 1. the peninsula between lakes Superior and Michigan constituting the N part of Michigan. Abbreviation: U.P. Upper Peninsula noun 1. a peninsula in the northern US between Lakes Superior and Michigan, constituting the N part of the state of Michigan