CIRCULUS
\sˈɜːkjʊləs], \sˈɜːkjʊləs], \s_ˈɜː_k_j_ʊ_l_ə_s]\
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Any ringlike arrangement of blood-vessels caused by branching or connection with one another, as circulus major of iris.
By Henderson, I. F.; Henderson, W. D.
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[Latin] Any ringlike arrangement, as of blood-vessels caused by branching or connection with one another, as circulus major of iris, or as of markings of fish scales.
By J.H. Kenneth
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A circle or ring; Cyclus, Ci'rios, (F.) Cercle. Any part of the body which is round or annular, as Cir'culus Oc'uli-the globe, bulb, or orb of the eye.-Hippocr., Galen. It is, also, applied to objects, which by no means form a circle, - as to the Circle of Willis, Cir'culus arterio'sus Willis'ii, (F.) Hexagone arterielle, which is an anastomotic circle at the base of the brain, formed by the anterior and the posterior cerebral arteries and the communicating arteries of Willis.
By Robley Dunglison
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[Latin] Circle. C. arteriosus (or simply C.), circle of Willis. C. arteriosus Halleri, C. venosus Halleri, see Circle of Haller. C. iridis major (et minor), the greater and lesser circle of the iris (see Circle). C. migrans, geographical tongue.
By Alexander Duane
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.