1. Occurring ever half hour

1. Every thirty minutes, every half hour

See also: periodic, periodical

• drag out
• drag queen
• drag race
• drag racing
• drag through the mud
• drag up
• dragger
• dragging
• draggingly
• draggle
• draggled
• draggy
• dragnet
• dragoman
• dragon
• dragon arum
• dragon lizard
• dragon tree
• dragon's blood
• dragon's eye
• dragon's head
• dragon's mouth
• dragonet
• dragonfly
• dragonhead