conchoid

con·choid

C c

Transcription

- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
- [kong-koid]
- /ˈkɒŋ kɔɪd/
- /ˈkɒŋk.ɔɪd/

- US Pronunciation
- US IPA
- [kong-koid]
- /ˈkɒŋ kɔɪd/

Definitions of conchoid word

noun conchoid a plane curve consisting of two branches situated about a line to which they are asymptotic, so that a line from a fixed point (the pole) intersecting both branches is of constant length between asymptote and either branch. Equation: (x – a)2(x2 + y2) = b2x2 where a is the distance between the pole and a vertical asymptote and b is the length of the constant segment 3
noun conchoid a curve traced by an end point of a segment of constant length located on a straight line that rotates about a fixed point, while the other end point moves along a straight line that does not go through the fixed point 3
noun conchoid a plane curve such that if a straight line is drawn from a certain fixed point, called the pole of the curve, to the curve, the part of the line intersected between the curve and its asymptote is always equal to a fixed distance. Equation: r = b ± a sec(θ). 1
noun conchoid (mathematics, geometry) Any of a family of curves defined as the locus of points p, such that each p is on a line that passes through a given fixed point P and intersects a given curve, C, and the distance from p to the point of intersection with C is a specified constant (note that for nontrivial cases two such points p satisfy the criteria, and the resultant curve has two parts). 0
noun conchoid (geology) A conchoidal fracture in rock. 0

See all 5 definitions of conchoid

Information block about the term

Origin of conchoid

First appearance:

before 1790

One of the 43% newest English words

From the Greek word konchoeidḗs, dating back to 1790-1800. See conch, -oid

Historical Comparancy

Parts of speech for Conchoid

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Conchoid

conchoid popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 54% of English native speakers know the meaning and use word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

conchoid usage trend in Literature

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