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H,

8th letter of the alphabetalphabet
[Gr. alpha-beta, like Eng. ABC], system of writing, theoretically having a one-for-one relation between character (or letter) and phoneme (see phonetics). Few alphabets have achieved the ideal exactness.
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. It is a usual symbol for a glottal spirant, murmured (as in the English house) or voiceless (as in the English herb). In some Greek alphabets eta, the long e, had this form. In chemistry H is the symbol for the element hydrogenhydrogen
[Gr.,=water forming], gaseous chemical element; symbol H; at. no. 1; interval in which at. wt. ranges 1.00784–1.00811; m.p. −259.14°C;; b.p. −252.87°C;; density 0.08988 grams per liter at STP; valence usually +1.
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.

h

(quantum mechanics)

H

(electromagnetism)
(chemistry)

H

On drawings, abbr. for “hard.”

h

Symbol for “hour.”

h

(1)
A simple markup language intended for quick conversion of existing text to hypertext.

h

(2)
A method of marking common words to call attention to the fact that they are being used in a nonstandard, ironic, or humorous way. Originated in the fannish catchphrase "Bheer is the One True Ghod!" from decades ago. H-infix marking of "Ghod" and other words spread into the 1960s counterculture via underground comix, and into early hackerdom either from the counterculture or from SF fandom (the three overlapped heavily at the time). More recently, the h infix has become an expected feature of benchmark names (Dhrystone, Rhealstone, etc.); this follows on from the original Whetstone (the name of a laboratory) but may have been influenced by the fannish/counterculture h infix.

h

(Hexadecimal) A symbol that refers to a hex number. For example, 09h has a numeric value of 9, whereas 0Ah has a value of 10. See hex chart. See also henry.
References in periodicals archive ?
Joining drummer Aitch are bass guitarist Michael Searl, guitarist Dan McIntyre and Joey Hickman on trombone/keyboards, as well as members of the cast.
Gary Moore was out of luck in Bassinet's race with well-backed favourite Action Impact, whom he feels may have been over the top, but he was on the mark with Benhego, who was making it two out of two for his new stable with a last-to-first defeat of recent course winner Mr Aitch in the 2m handicap.
Noble Raider, a 16-1 chance, came from way off the pace to upset the favourite Mr Aitch in the Watch Security Novices' Hurdle.
Take Aitch Crow, 50, an accountant from Newsham Farm in Blyth.
The band, whose drummer Aitch has played with The Selecter and The Specials, is made up of regulars at the Albany, along with Lizzi, who plays saxophone.
Aitch, Glasgow AS a Celtic-supporting family, we'd like to send our sincerest best wishes to Rangers legend Sandy Jardine in his battle with cancer.
Joanne Aitch, Ellesmere Port, Wirral JAMES should be the type of person youngsters look up to.
Aitch Luke Fitzgerald is good, but doesn't have Shane's step, pace or experience.
The Outstanding Business of the Year Award for the East Birmingham and North Solihull Regeneration Zone went to greetings cards manufacturer Cinnamon Aitch, with KeenKleen winning the same award in the West Birmingham Arc of Opportunity area.
It is called Em Eye Doubledee Ellie Ess Bee Are Oh You Gee Aitch, which is Middlesbrough spelled out phonetically.
ANDY MURRAY could win Wimbledon without dropping a set - the greatest achievement since Virginia Wade won the women's title without dropping an aitch.