1. Having notes of fixed rhythmic value
   - mensural, measured 
2. Capable of being measured
   - measurable

See also: magnitude

• prazosin
• PRC
• pre-
• pre-Christian
• pre-Columbian
• pre-contract
• pre-embryo
• pre-emptive strike
• pre-Jurassic
• pre-nup
• Pre-Raphaelite
• pre-soak
• preach
• preacher
• preacher man
• preachification
• preachify
• preaching
• preachment
• preachy
• preadolescent
• Preakness
• preamble
• preamplifier
• preanal