The derived term "lantern jaw" is used in two quite different still current ways, comparing faces with different types of lantern. According to the Oxford English Dictionary, it refers to "long thin jaws, giving a hollow appearance to the cheek"; this use was recorded in 1361, referring to a lantern with concave horn sides before glass was in use. Another meaning of "lantern jaw" compares a lantern with a jutting base – such as the 15th-century example above – to the face of a person with the extended chin of mandibular prognathism; this condition was also known as Habsburg jaw or Habsburg lip, as it was a hereditary feature of the House of Habsburg (see, for example, portraits of Charles V, Holy Roman Emperor#Health).