Radical : Radical : Radical : ( Radical30) two strokes in Kanji;

dimensional, e.g.

1D, one dimension (e.g. to the right);

Chinese Romanization ( cr) ;

directional, e.g.

;

logical, e.g.

cliff;
factory; mill; plant; yard;
wild goose;

numerological, e.g.

2;

structural, e.g.

time based characteristic of frequency band, e.g. bandwidth ... ;

Radical ; Radical ; Radical ; Radicals;