Core

активная зона

aktivnaja zona

(inner part of a nuclear reactor, in which the nuclear reaction takes place)

атомный остов

atomnyj ostov

(atomic nucleus plus inner/core electrons)

керн

kern

(cylindrical sample)

магнитопровод

magnitoprovod

(a piece of ferromagnetic material inside a coil)

сердцеви́на

serdcevína

(central part of fruit, containing the kernels or seeds)

сердцеви́на

serdcevína

(heart of a thing)

сердцеви́на

serdcevína

(center or inner part)

сердцеви́на

serdcevína

(something that produces a hollow space in a casting)

середи́на

seredína

(center or inner part)

су́щность

súščnostʹ

(most important part of a thing)

суть

sutʹ

(most important part of a thing)

центр

centr

(center or inner part)

ядро́

jadró

(central part of fruit, containing the kernels or seeds)

ядро́

jadró

(center or inner part)

ядро́

jadró

(one of several parts in a computer processor)