conchoid background

conchoid

/ˈkɒŋkɔɪd/ /ˈkɑːŋkɔɪd/

Illustration conchoid - Image 1

noun

Конхоида

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."

Конхоида Никомеда — это конхоида прямой относительно точки, не лежащей на этой прямой.

Illustration conchoid - Image 1

noun

Раковистый излом

A conchoidal fracture in rock.

Examples :

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

Сломанный наконечник стрелы из кремня при разломе демонстрировал отчетливый раковистый излом на своей поверхности, напоминающий слегка изогнутую раковину.

geology material