Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Resembling a circle.
- adjective Relating to or being a kind of fish scale that is thin, rounded, and smooth-edged and often shows concentric growth rings.
- adjective Having cycloid scales.
- adjective Psychology Afflicted with or relating to cyclothymia.
- noun The curve traced by a point on the circumference of a circle that rolls on a straight line.
from The Century Dictionary.
- Resembling a circle; having a circular form.
- Specifically In ichthyology: More or less circular, with concentric striations: applied to the scales of certain fishes. See cut under
scale . - Having somewhat circular scales, as a fish; specifically, pertaining to the Cycloidei.
- noun A curve generated by a point in the circumference or on a radius of a circle when the circle is rolled along a straight line and kept always in the same plane.
- noun In ichthyology, a cycloid fish; a fish with cycloid scales, or one of the Cycloidei.
- In chem., containing a cycle or ring of atoms: used especially of the structure of organic compounds.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geom.) A curve generated by a point in the plane of a circle when the circle is rolled along a straight line, keeping always in the same plane.
- adjective (Zoöl.) Of or pertaining to the Cycloidei.
- adjective (Zoöl.) a fish scale which is thin and shows concentric lines of growth, without serrations on the margin.
- noun (Zoöl.) One of the Cycloidei.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geometry The
locus of apoint on thecircumference of acircle thatrolls withoutslipping on a fixedstraight line . - noun zoology A
fish having cycloidscales . - adjective
Resembling a circle;cycloidal . - adjective zoology (of fish scales)
Thin androunded , withsmooth edges .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective resembling a circle
- noun a line generated by a point on a circle rolling along a straight line
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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8.13 A Beautiful Curve ∗ One of the most wonderful curves I can think of, and one that had a great in fl uence on me in my youth, is called a cycloid, which is the locus ∗ ∗ of a fi xed point on the circumference of a circle as it rolls, without slipping, along a straight line (Figure 8.8).
Recently Uploaded Slideshows sahmozac 2010
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A cycloid is a curve traced by a point in the circumference of a wheel when the wheel is rolled along in a straight line.
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Newton solved it correctly; he showed that the curve was a part of what is termed a cycloid -- that is to say, a curve like that which is described by a point on the rim of a carriage-wheel as the wheel runs along the ground.
Great Astronomers 1876
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Thin, translucent, and lacking enamel as well as dentine, these modern structures are known as cycloid and ctenoid scales.
unknown title 2009
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Thin, translucent, and lacking enamel as well as dentine, these modern structures are known as cycloid and ctenoid scales.
unknown title 2009
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Thin, translucent, and lacking enamel as well as dentine, these modern structures are known as cycloid and ctenoid scales.
unknown title 2009
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Thin, translucent, and lacking enamel as well as dentine, these modern structures are known as cycloid and ctenoid scales.
unknown title 2009
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The fine-grained assemblage is dominated by tabular, low-density elements, such as cycloid scales and fish vertebrae.
Archive 2008-04-01 ReBecca Foster 2008
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The fine-grained assemblage is dominated by tabular, low-density elements, such as cycloid scales and fish vertebrae.
CONGRATS LAURA!!! ReBecca Foster 2008
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A curve described in space by a point of a circle or sphere, which itself is carried along at the same time, is some kind of cycloid; if the centre of the tracing circle travels along a straight line, we get the ordinary cycloid, the curve traced in air by a nail on a coach-wheel; but if the centre of the tracing circle be carried round another circle the curve described is called an epicycloid.
Pioneers of Science Oliver Lodge 1895
duckbill commented on the word cycloid
Used in the sense of 'manic-depressive' in some literature.
April 24, 2011