Radicals ( Radical510) eight strokes in Kanji;

dimensional, e.g.

;

directional, e.g.

;

logical, e.g.

in Hiragana: Chou; Zhou dynasty of China;

counter for circuits;
counter for laps;

perimeter;

in Kanji: circuit; circumference; lap;

Amane (family name, female name, surname); Itaru (name); Osamu (name);

numerological, e.g.

8;

structural, e.g.

( component frequency) Graphics representations (computer program, sound analysis), also see: ultrasound ... ;

Electricity Power Plug;

printed wiring board, a.k.a. Printed Circuit Board (PCB); Also see: wire;

Radical16;

Radical40;

Radical38;

Radicals;