(law) Any law that makes a prior legal act illegal, or increases the penalty for a prior illegal act.

Alternative form of lantern-jawed

Having a protruding or jutting lower jaw.

A room at the top of a lighthouse in which the signal light is housed.

A stray patch of brightness in a photographic image resulting from aberrant refractions or reflections within the lens due to an exceptionally bright light source, sometimes one just outside the image proper.

An ideal place that does not exist in reality.

plural of Latin American

a glass apparatus in which hydrogen, generated from zinc and sulphuric acid, is burnt; used primarily as a demonstration (invented by Alessandro Volta)

A small, low-wattage lamp used as an indicator or nightlight, typically consisting of a pair of electrodes sealed in a bulb containing neon at low pressure.

(linguistics) A language which is reconstructed by examining similarities in existing languages to try to deduce what a common ancestor language, no longer known, would have been like.