1. An acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity

Type of: radiometer

• imperceptibly
• imperceptive
• impercipient
• imperfect
• imperfect tense
• imperfectibility
• imperfectible
• imperfection
• imperfective
• imperfective aspect
• imperfectly
• imperfectness
• imperforate
• imperforate anus
• imperforate hymen
• imperial
• imperial beard
• Imperial capacity unit
• imperial decree
• imperial elephant
• Imperial gallon
• imperial Japanese morning glory
• imperial mammoth
• imperial moth
• imperialism