Defn: An apparatus employed to indicate the presence, or the amount, of ozone.
OZONOSCOPIC
O*zo`no*scop"ic, a. Etym: [Ozone + Gr. (Chem.)
Defn: Serving to indicate the presence or the amount of ozone.
OZONOUS
O"zo*nous, a.
Defn: Pertaining to or containing, ozone.
P
P (pe),
Defn: the sixteenth letter of the English alphabet, is a nonvocal consonant whose form and value come from the Latin, into which language the letter was brought, through the ancient Greek, from the Phonician, its probable origin being Egyptian. Etymologically P is most closely related to b, f, and v; as hobble, hopple; father, paternal; recipient, receive. See B, F, and M.
See Guide to Pronunciation, §§ 247, 248, and 184-195.
PA
Pa (pä), n.
Defn: A shortened form of Papa.