(idiomatic) A child who returns home from school to an empty house and therefore must unlock/unlatch the exterior door with a key, especially a child of working or absent parent(s).

Any of a family of organic compounds used as yellow pigments, obtained by azo coupling of aniline and acetoacetanilide or their derivatives.

(organic chemistry) An unsaturated fatty acid having 20 carbon atoms and one double bond

plural of epipteric