Arc to my inæ (arktomiine)

pl. [NL., which the squirrel family, Sciurid a, is divisible, containing the terrestrial as dis distinguished from the arboreal members of the family, as the marmots or woodchucks, the prairie-dogs, the susliks, the ground-squirrels or spermophiles, etc. They are generally distinguished by larger size, stouter form, shorter and le bushy tail, and terrestrial and fo orial habits, but offer a very easy transition through some forms into the true squirrels. The principal genera are Arctomys, Spermophilus, and Tamias; their species are numerous, and are very generally distributed over the northern hemisphere. Also called Arcto mina, Arc to my din a, and Arc to my in a. Arctomys (ärk'tō-mis), n. [NL., S Woodchuck ( Arctomys monax). Huxley , Anat. Vert., p. 392. arcus northern hemisphere, the fourth in order of brightne in the entire heavens. It is situated between the thighs of Bootes, behind the Great Bear, and is easily found by following out the curve of the bear's tail. In the southern hemisphere it may be recognized See cut under Boötes . by its forming a nearly equilateral triangle with Spica and Denebola. It is called by astronomers a ( alpha ) Boötæ. 2. [NL.] A genus of isopod crustaceans, of the family Idoteidæ or Arcturida. Latreille, 1829. arcual (är'kū-al), a. [L. arcus (see arc1 ) + -al.] Pertaining to or of the nature of an are. Arcuata (är-kū-āʼtä), n. pl. [NL., neut. pl. of L. arcuatus: see arcuate.] A group of crabs, including those of the typical genus Cancer. arcuate (är'ku-āt), a. [L. arcuatus, pp. of arcuare, bend like a bow, an at.: (a) The longitudinal fibers of the gyrus fornicatus, connecting the frontal and temporosphenoidal convolutions of the brain as well as intermediate points. Meynert. (b) The uncinate fasciculus of Meynert, pa ing acro the bottom of the Sylvian fi ure to connect the frontal and temporosphenoidal convolutions of the brain. Quain.Arcuate fibers, in an at., the horizontal arching fibers of the medulla oblong at a, pons Varolii, and tegmentum, especially those seeming to originate in the raphe.Arcuate ligament, in an at., the tendinous arch which pa es on either side of the back-bone over the psoas magnus and quadratus lumborum muscles, and to which the diaphragm is attached.