1. A quad with a square body
   "since 'em quad' is hard to distinguish from 'en quad', printers sometimes called it a 'mutton quad'"
   - em, em quad

Type of: area unit, square measure

• double pneumonia
• double quotes
• double reed
• double refraction
• double replacement reaction
• double reverse
• double rhyme
• double salt
• double saucepan
• double sharp
• double standard
• double standard of sexual behavior
• double star
• double stitch
• double stopping
• double take
• double talk
• double time
• double tongue
• double up
• double vision
• double-barreled
• double-barrelled
• double-bedded
• double-bitted ax