ozonometer

[Eng. ozone, o connective, and meter (q. v.).] An instrument for ascertaining the amount of ozone in the atmosphere. ō-zōn-o-mět-ric, a . [Eng. ozonometr (y); -ic.] ō-zōn-om-ě-try, s . [Eng. ozonometer; -y.] The determination of the presence and properties of ozone in the atmosphere. Of or pertaining to ozonometry. THE sixteenth letter and the twelfth consonant of the English alphabet is a labial sound, formed by a compre ion of the anterior part of the lips. as in pull , papa , ap . As a sharp labial it is cla ed with f, and corresponds to the flat labialb. Phas but one sound in English, except when in it sounded asf, and occthe ind i graphed which this combination with whiforms Greek. In the case of many words derived from the Greek, initial p is not sounded, as in pneumatics , psalm, psalter, pterodactyl . It is sometimes, but rarely, silent in the middle of a word, as in receipt , P represents an original b in go ip (Mid. Eng: godsib ), purse (O. Fr. borse , Lat. bursa ), apricot lobster (Mid. Eng. loppestre ), cobweb (Mid. Eng. copweb ), and by v in knave (Mid. Eng. cnapa ). Pis often found inserted between m and t, as in empty (Mid. Eng. emtig), tempt (O. Fr. tenter , Lat. ten to). abricot ). An original p is represented I. As an initial : P represents the Latin post = after; as, p . m.=post meridiem after noon; p . s. =postcript, .; in music for piano =softly. II. As a symbol , P was formerly used: In numer.: To denote 100, and with a dash over it, P, to denote 100,000. (1) To mind one's P's and Q's : To be careful in one's behavior. *(2) To be pandq: To be of the first quality. pa, 8. [PAPA.) A child's form of Papa (q. v.).