1. A passage; esp., the passage between the third and fourth ventricles in the brain; the aqueduct of Sylvius

Derived forms: iters

Encyclopedia: Iter

• undependable
• undependableness
• undependably
• undepicted
• under
• under a cloud
• under arms
• under attack
• under fire
• under it
• under that
• under the circumstances
• under the weather
• under wraps
• under-represent
• under-the-counter
• under-the-table
• underachieve
• underachievement
• underachiever
• underact
• underactive
• underage
• underarm
• underbelly