cusp


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cusp

1. Dentistry any of the small elevations on the grinding or chewing surface of a tooth
2. Anatomy any of the triangular flaps of a heart valve
3. Geometry a point at which two arcs of a curve intersect and at which the two tangents are coincident
4. Architect a carving at the meeting place of two arcs
5. Astronomy either of the points of a crescent moon or of a satellite or inferior planet in a similar phase
6. Astrology any division between houses or signs of the zodiac
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

cusp

Either of the tapering points of the crescent phase of the Moon, Venus, or Mercury.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

Cusp

The intersection of two arcs or foliations in a tracery; the figure formed by the intersection of tracery arcs or foliations.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

Cusp

(religion, spiritualism, and occult)

In astrology, cusp refers to two different but related divisions. First, a cusp is the dividing line separating a sign from its preceding sign. For example, someone born just prior to the Sun’s movement out of Cancer and into Leo is said to be “on the cusp of Leo” or “on the Cancer-Leo cusp.” Such an individual is said to manifest traits of both signs.

Second, the cusp is the dividing line separating a house from the preceding house. For example, if an individual’s seventh house begins at 10° Aries and ends at 13° Taurus, the person’s seventh house cusp is at 10° Aries. Planets located at end of one house so that they are very close (usually within 5°) to the next house are said to influence the affairs of both houses. Thus, to continue using the previous example, a natal Venus located at 8° Aries in the sixth house would exert—over and above its influence in the sixth house—an influence in the seventh house because it is only 2° away from the seventh-house cusp.

Sources:

Brau, Jean-Louis, Helen Weaver, and Allan Edmands. Larousse Encyclopedia of Astrology. New York: New American Library, 1980.
Leo, Alan. The Complete Dictionary of Astrology. Rochester, VT: Destiny Books, 1989.
The Astrology Book, Second Edition © 2003 Visible Ink Press®. All rights reserved.

cusp

[kəsp]
(anatomy)
A pointed or rounded projection on the masticating surface of a tooth.
One of the flaps of a heart valve.
(architecture)
A pointed projection or peak created by the intersection of two arcs.
(geology)
One of a series of low, crescent-shaped mounds of beach material separated by smoothly curved, shallow troughs spaced at more or less regular intervals along and generally perpendicular to the beach face. Also known as beach cusp.
(geophysics)
Any of the funnel-shaped regions in the magnetosphere extending from the front magnetopause to the polar ionosphere, and filled with solar wind plasma.
(mathematics)
A singular point of a curve at which the limits of the tangents of the portions of the curve on either side of the point coincide. Also known as spinode.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

cusp

types of cusps
1. The intersection of two arcs or foliations in a tracery.
2. The figure formed by the intersection of tracery arcs. Also see foil.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
8 Takahashi M, Kondo S,Townsend GC, Kanazawa E.Variability In Cusp Size Of Human Maxillay Molars, With Particular Reference To The Hypocone.
This gives the Fourier expansion of modular forms of weight k at the cusp [l], and defines the condition of holomorphicity there.
The teeth have a five-cuspid crown with large central and lateral cusps and small intermediate cusps.
The values of VH and DC in 0[degrees] cusp inclination (flat) zirconia were in agreement with the previous studies [19, 21, 45, 46].
At this month's favorable morning apparition of Mercury, visual observers and CCD imagers are encouraged to sleuth out the north "polar cap"--or, equivalently, Schroter's blunted southern cusp. The planet will rise at least 1 1/2 hours before the Sun from the last week of December until about January 10th.
We did not repair aortic valve in cusp prolapse or mild degree of valve insufficiency.Aortic valve was repaired by suspension of right coronary cusp as described by Trusler in 8 patients.
In the next step, before starting the grinding of the cusp a putty index was made and cut sagittally at the maximum height of Talon's cusp for both lateral incisors.
Material and Methods: The thickness of functional and non-functional cusps for both complete cast and metal ceramic crowns fabricated in the dental laboratories of multiple teaching hospitals were measured using Iwanson gauge.
The length of right atrioventricular valve and left cusp of left atrioventricular valve was significantly more in experimental group B2 than that of control group A2.
and you fell were a in on the cusp He is belief hi"He accepts he has acted foolishly and has placed himself in a position where he is on the cusp of losing everything
The wall of the aorta was flattened to visualize the sinu-aortic ridge, the cusps, number and position of the coronary ostia.
It was recorded the following dental morphological characteristics of the teeth: shovel-shaped superior incisor, Carabelli's cusp on the superior molars, sixth and seventh cusps on the inferior molars.