(technology) A type of electric lamp for producing a beam of light in which the filament is sealed inside a unit consisting of the reflector and lens so as to ensure the alignment of the beam and t...

(immunology) An array of immunological detectors or similar equipment

(zoology) Any fish in the family Priacanthidae.

(law) Underage, not having reached legal majority. / (medicine, sometimes figuratively) Not serious, not involving risk of death, permanent injury, dangerous surgery, or extended hospitalization.