plural of active galaxy

A form of euthanasia wherein death is intentionally brought about, usually by medical intervention to end the euthanasee's suffering.

Essential components of a device, reaction, etc. / A radioactive material

(UK, military) Full-time occupation in the military.

plural of active material

plural of active matrix

(ichthyology) The use of light originating from the organism to illuminate the visual field to see into the field of vision.

Dated spelling of radioactive.

(obsolete, gay slang) Taking or preferring to take the insertive role in anal sex.

(obsolete, gay slang) Preferring to give rather than receive fellatio.