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A circumscribed rounded swelling; a protuberance.
The prominence of a kyphosis or humpback.
Excellent; wonderful; the MOST •This old use seems to have been revived independently by 1950s jazz musicians and teenagers: Aw, this is boss/ Japan has leaped into the implements-for-bosser-living gap (1880s+)noun
: That little guy bosses the whole operation (1850s+)Related Terms
[fr Dutch baas, ''master'']
in medieval architecture, keystone used in vaulting to provide a junction for intersecting ribs and to cover the actual complex of mitred joints. In medieval England it was highly developed, but in France it was less developed because of the greater height of French naves. By the 13th century, decorative bosses with naturalistic carving were widely used in England (e.g., in the nave at Westminster Abbey, London, and at Ely Cathedral). In the 14th century, bosses comprising a series of narrative scenes appeared, and in the 15th century, fan vaulting was developed with long, pendantlike bosses