(chemistry) A positively charged radical ion.

(chemistry) The uncharged radical H₂N^. formally derived from ammonia by removing a hydrogen atom; and any of its derivatives R₂N^.

(chemistry) The uncharged form of an aminoxide derived from hydroxylamines by removal of a proton; their structure is best represented as R₂NO^. <=> R₂N^(.+)-O⁻.

(mathematics) The plane containing the circle formed by the intersection of two spheres (or whose points have equal power with respect to two non-intersecting spheres)

plural of radical line

plural of radical axis

plural of free radical

plural of aminyl radical

plural of aminoxyl radical

plural of radical ion