tri·a·tom·ic 
(trī′ə-tŏmĭk)
(trī′ə-tŏmĭk)adj.
Containing three atoms.
- positiveness
- positivism
- positivist
- positivistic
- positivity
- posit on
- posit on (or upon)
- positron
- positron emission tomography
- positronium
- posit upon
- posole
- posology
- poss.
- posse
- posse comitatus
- possess
- possessed
- possession
- possessional
- possessive
- possessive adjective
- possessively
- possessiveness
- possessive pronoun