1. Having a bone structure that is light with respect to the surrounding flesh

See also: frail

• at rest
• at sea
• at sixes and sevens
• at stake
• at that place
• at the best
• at the drop of a hat
• at the least
• at the most
• at the ready
• at the same time
• at the worst
• at times
• at variance
• at will
• at work
• at worst
• at-bat
• Atabrine
• Atacama Desert
• Atacama Trench
• atactic
• atactic abasia
• Atakapa
• Atakapan