1. Any notation that uses 16 different characters
   - hexadecimal notation

Type of: mathematical notation

• hollowly
• hollowness
• hollowware
• holly
• holly family
• holly fern
• holly-leaf cherry
• holly-leaved cherry
• holly-leaved oak
• holly-leaves barberry
• hollygrape
• hollyhock
• Hollywood
• holm
• holm oak
• holm tree
• Holman Hunt
• Holmes
• holmium
• holo-
• Holocanthus tricolor
• holocaust
• Holocene
• Holocene epoch
• Holocentridae