addition


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addition

Etymology: L, additio, something added
a chemical reaction in which two complete molecules combine to form a new product, usually by attachment to carbon atoms at a double or triple bond of one of the molecules.

addition

(ă-di′shŏn) [L. addere, to add]
In chemistry, a reaction in which two substances unite without loss of atoms or valence.
References in periodicals archive ?
2/27/2009 ADDITIONS/REMODELS 1049 PIPER SONOMA ST EUG SCHMIDT MARK & JACQUE E Addition of square footage to single family dwelling with attached garage.
The addition of titanium boron master alloy will increase the titanium content, which can be tested using a spectrometer.
Walters recently completed the interior fit-out of the addition.
Seating for Wednesday's ceremony was in parking stalls facing the doors of the new addition.
In addition, the new Honda Hybrid System achieves an approximately 20% greater output over the current system - and its performance is equal to that of a 1.
It is formed through a fumarate (4-carbon) addition to the methyl carbon of toluene that activates the molecule.
For limitation years beginning after 2001, the individual annual addition limit is the lower of $40,000 or 100% of compensation.
The 17,000-square-foot addition for young adults (18 years and older) totaled $2.
Thorough freshening of the R-gum provides ultimate efficiency in filler addition.
People eat menu alternatives and additions because it is a food they want.