Phobetron pithecium, a moth of the family Limacodidae.

(organic chemistry) A lactam having a three-membered ring structure.

(historical) A bonus or gift given by an employer to an employee, by a master/mistress to his/her servants, or by a householder to delivery persons at Christmas time, traditionally on Boxing Day.

Paper designed to be written on with ink; it may be ruled or unruled.