conchoid background

conchoid

/ˈkɒŋkɔɪd/ /ˈkɑːŋkɔɪd/

Illustration conchoid - Image 1

noun

Concoide

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).

Examples :

"The Conchoid of Nicomedes is the conchoid of a straight line with respect to a point not on the line."

La concoide de Nicomedes es la concoide de una línea recta con respecto a un punto que no está en la línea.

Illustration conchoid - Image 1

noun

Fractura concoidea

A conchoidal fracture in rock.

Examples :

"The flint arrowhead, when broken, displayed a distinct conchoid on its fractured surface, resembling a gently curved shell. "

La punta de flecha de pedernal, al romperse, mostraba una distinta fractura concoidea en su superficie fracturada, que se asemejaba a una concha suavemente curvada.

geology material