P and H
or P & H
Examples from the Web for ph
Contemporary Examples of ph
As we were taught in high school Chem, any pH below 7.4 is acidic.
One pH direction is no better or more natural than the other.
Mammalian cellular metabolism, aka the basic rules of being alive on planet Earth, runs best at a pH between 7.38 and 7.42.
Things on the other side of the ledger, at a pH above 7, are alkaline (also called “basic” as in acid-base).
Historical Examples of ph
Mrs. Pepperall used to say that her boy was quite a ph'losopher in his way.In a Little Town
An' yet, Hinnissy, I dinnaw what to do about th' Ph'lippeens.Mr. Dooley in Peace and in War
Finley Peter Dunne
But why should phrase be spelld with ph and s, and not f and z?
Like ph or f in English; as, a' phuill of the pool, phill returned.Elements of Gaelic Grammar
Talk about th' Boer war an' th' campaign in th' Ph'lippeens!Mr. Dooley's Philosophy
Finley Peter Dunne
the internet domain name for
the chemical symbol for
1909, from German PH, introduced by S.P.L. Sörensen, from P, for German Potenz "potency, power" + H, symbol for the hydrogen ion that determines acidity or alkalinity.
now in English usually representing "f," originally it was the combination used by Romans to represent Greek letter phi (cognate with Sanskrit -bh-, Germanic -b-), which at first was an aspirated "p," later the same sound as German -pf-. But by 2c. B.C.E. had become a simple sound made by blowing through the lips (bilabial spirant).
Roman "f," like modern English "f," was dentilabial; by c.400, however, the sounds had become identical and in some Romanic languages (Italian, Spanish), -ph- regularly was replaced by -f-. This tendency took hold in Old French and Middle English, but with the revival of classical learning the words subsequently were altered back to -ph- (except fancy and fantastic), and due to zealousness in this some non-Greek words in -f- began to appear confusedly in -ph-, though these forms generally have not survived.