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Vertex   Listen
Vertex  n.  (pl. E. vertexes, L. vertices)  A turning point; the principal or highest point; top; summit; crown; apex. Specifically:
(Anat.) The top, or crown, of the head.
(Astron.) The zenith, or the point of the heavens directly overhead.
(Math.) The point in any figure opposite to, and farthest from, the base; the terminating point of some particular line or lines in a figure or a curve; the top, or the point opposite the base. Note: The principal vertex of a conic section is, in the parabola, the vertex of the axis of the curve: in the ellipse, either extremity of either axis, but usually the left-hand vertex of the transverse axis; in the hyperbola, either vertex, but usually the right-hand vertex of the transverse axis.
Vertex of a curve (Math.), the point in which the axis of the curve intersects it.
Vertex of an angle (Math.), the point in which the sides of the angle meet.
Vertex of a solid, or Vertex of a surface of revolution (Math.), the point in which the axis pierces the surface.

Collaborative International Dictionary of English 0.48

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"Vertex" Quotes from Famous Books

... atque intra Minyas Argoaque vela Styrus adest: vasto rursus desidit hiatu Abrupta revolutus aqua. Iamque omnis in astra 330 Itque reditque ratis, lapsoque reciproca fluctu Descendit. Vorat hos vertex, hos agmine toto Gurges agit. Simul in voltus micat undique terror; Crebra ruina poli ...
— Helps to Latin Translation at Sight • Edmund Luce

... this great difference between French art and Italian, that the French paused strangely at a certain point, as the Norman hills are truncated at the summits, while the Italian rose steadily to a vertex, as the Carrara hills to their crests. Let us observe this a ...
— Modern Painters, Volume IV (of V) • John Ruskin

... birth. But the long stalk or pedicle of the allantois remains, and forms with its upper part the middle vesico-umbilical ligament, a rudimentary organ that goes in the shape of a solid string from the vertex of the bladder to the navel. The lowest part of the allantoic pedicle (or the "urachus") remains hollow, and forms the bladder. At first this opens into the last section of the gut in man as in the lower Vertebrates; ...
— The Evolution of Man, V.2 • Ernst Haeckel

... now rare, and I copy Mr. Bell's description of the breed, in possession of his namesake:—"They stand twenty-eight inches high at the shoulder; the muzzle broad and full, the upper lip large and pendulous, the vertex of the head protuberant, the expression stern, thoughtful, and noble; the breast broad; the limbs strong and muscular, and the original colour a deep tan, with large black clouds. They are silent when following their scent; ...
— Anecdotes of the Habits and Instinct of Animals • R. Lee

... its Delta. Along the whole coast, from the river of Formosa or Benin to that of Old Calabar, about 300 miles in length, there open into the Atlantic its successive estuaries, which navigators have scarcely been able to number. Taking its coast as the base of the triangle or Delta, and its vertex at Kirree, about 170 miles inland, we have a space of upwards of 25,000 square miles, equal to the half of England. Had this Delta, like that of the Nile, been subject only to temporary inundations, leaving behind a layer of fertilizing slime, it would have formed the most fruitful region ...
— Life and Travels of Mungo Park in Central Africa • Mungo Park

... cursed inwardly and outwardly. May he be cursed in his hair; cursed be he in his brains, and his vertex, in his temples, in his eyebrows, in his cheeks, in his jaw-bones, in his nostrils, in his teeth, and grinders, in his lips, in his shoulders, in his ...
— Life in the Grey Nunnery at Montreal • Sarah J Richardson

... of the Kaffre project outwards; and where the cheek-bones so project beyond a certain limit, the chin appears to taper downwards, and the vertex upwards. When this becomes exaggerated we hear of lozenge-shaped crania; the Malay skulls being currently quoted as instances thereof. Be this as it may, the breadth in the malar portion of the face is a remarkable ...
— The Ethnology of the British Colonies and Dependencies • Robert Gordon Latham

Words linked to "Vertex" :   roof peak, intersection point, acme, intersection, peak

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