(n) ionic radius
(n) ionic reaction
(n) (comp) Orion
(n) diode
(P)
(n) biogas
(n) biomass
(n) violin
(P)
(n) biotechnology
(n) bio-device
(n) biofuel
(n) (1) pioneer
(2) Pioneer (Japanese electronics company)
(P)
(n) priori
(n) play-off
playoff
(n) viol
(n) hydrogen ion
(n) iodine
(n) iolite (blue gemstone)
(n) ionizer
(n) Ionian mode
(n) ion beam
(n) ion pump
(n) ionization tendency
ionisation tendency
(n) ion microscope
(n) deionized water
DI water
(n) gram ion
(n) (comp) SYMBIOS
(n) (uk) longleaf pine (Pinus palustris)
(n) (uk) royal palm (esp. Cuban royal palm, Roystonea regia)
(n) dioxin
(n) troy ounce
ounce troy