conchoid
English
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conchoid
Where it comes from
From Latin concha (“mussel”) (from Ancient Greek κόγχη (kónkhē)) + -oid or directly from Ancient Greek κογχοειδής (konkhoeidḗs), referring to the curved outline of a mussel shell or anything in this form. By surface analysis, conch + -oid.
noun conchoids
- 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). The conchoid of a circle with respect to a point on the circle is a cardioid if the fixed distance is equal to the diameter of the circle.
- A conchoidal fracture in rock. Conchoids of sound rock, from a few feet to 20 or more feet in diameter, entirely surrounded by comparatively thin layers of weathered material, were frequently encountered, sometimes in adjacent series.
Translations
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noun any of a certain family of curves
| Русский | конхо́ида konxóida |
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Talk about this word "conchoid." Wiktionary, via Micwyn, micwyn.com/word/conchoid. Accessed 6 Nov. 2026. conchoid. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/conchoid "conchoid." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/conchoid.Cite this
@misc{conchoid_2026,
title = {conchoid},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/conchoid},
urldate = {2026-11-06}
}
