Crossword clues for addition
addition
 Mathematical operation
 Extra unhealthy dependence on taking Charlie
 Extra something
 Extra problem with drugs, when losing heart
 Extra hearing transposes the limits of ultrasound
 Subtraction's opposite
 Process of summation
 Process of summing
 Blessed event
 Opposite of subtraction
 Math exercise with plus signs
 Extra inclusion
 Builder's afterthought
 Ell, maybe
 Building wing
 Calculating the sum of two or more numbers
 The act of adding one thing to another
 Something added to what you have already
 A quantity that is added
 A suburban area laid out in streets and lots for a future residential area
 The arithmetic operation of summing
 A component that is added to something to improve it
 Math process
 Home project
 Increase
 Arithmetical operation
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Addition \Ad*di"tion\, n. [F. addition, L. additio, fr. addere to add.]
The act of adding two or more things together;  opposed to subtraction or diminution. ``This endless addition or addibility of numbers.''
Locke.Anything added; increase; augmentation; as, a piazza is an addition to a building.
(Math.) That part of arithmetic which treats of adding numbers.
(Mus.) A dot at the right side of a note as an indication that its sound is to be lengthened one half. [R.]
(Law) A title annexed to a man's name, to identify him more precisely; as, John Doe, Esq.; Richard Roe, Gent.; Robert Dale, Mason; Thomas Way, of New York; a mark of distinction; a title.

(Her.) Something added to a coat of arms, as a mark of honor;  opposed to abatement.
Vector addition (Geom.), that kind of addition of two lines, or vectors, AB and BC, by which their sum is regarded as the line, or vector, AC.
Syn: Increase; accession; augmentation; appendage; adjunct.
Douglas Harper's Etymology Dictionary
late 14c., "action of adding numbers;" c.1400, "that which is added," from Old French adition "increase, augmentation" (13c.), from Latin additionem (nominative additio) "an adding to, addition," noun of action from past participle stem of addere (see add). Phrase in addition to "also" is from 1680s.
Wiktionary
n. 1 (context uncountable English) The act of adding anything. 2 Anything that is added. 3 (context uncountable English) The arithmetic operation of adding. 4 (context music English) A dot at the right side of a note as an indication that its sound is to be lengthened one half. 5 (context legal English) A title annexed to a person's name to identify him or her more precisely, as in "John Doe, '''Esq'''.", "Robert Dale, '''Mason'''", "Thomas Way, '''of New York'''". 6 (context heraldry English) Something added to a coat of arms, as a mark of honour; opposed to (term abatement English).
WordNet
n. a component that is added to something to improve it; "the addition of a bathroom was a major improvement"; "the addition of cinammon improved the flavor" [syn: addon, improver]
the act of adding one thing to another; "the addition of flowers created a pleasing effect"; "the addition of a leap day every four years" [ant: subtraction]
a quantity that is added; "there was an addition to property taxes this year"; "they recorded the cattle's gain in weight over a period of weeks" [syn: increase, gain]
something added to what you already have; "the librarian shelved the new accessions"; "he was a new addition to the staff" [syn: accession]
a suburban area laid out in streets and lots for a future residential area
the arithmetic operation of summing; calculating the sum of two or more numbers; "the summation of four and three gives seven"; "four plus three equals seven" [syn: summation, plus]
Gazetteer
Wikipedia
Addition (often signified by the plus symbol "+") is one of the four basic operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined. For example, in the picture on the right, there is a combination of three apples and two apples together, making a total of five apples. This observation is equivalent to the mathematical expression "3 + 2 = 5" i.e., "3 add 2 is equal to 5".
Besides counting fruits, addition can also represent combining other physical objects. Using systematic generalizations, addition can also be defined on more abstract quantities, such as integers, rational numbers, real numbers and complex numbers and other abstract objects such as vectors and matrices.
In arithmetic, rules for addition involving fractions and negative numbers have been devised amongst others. In algebra, addition is studied more abstractly.
Addition has several important properties. It is commutative, meaning that order does not matter, and it is associative, meaning that when one adds more than two numbers, the order in which addition is performed does not matter (see Summation). Repeated addition of 1 is the same as counting; addition of 0 does not change a number. Addition also obeys predictable rules concerning related operations such as subtraction and multiplication.
Performing addition is one of the simplest numerical tasks. Addition of very small numbers is accessible to toddlers; the most basic task, 1 + 1, can be performed by infants as young as five months and even some nonhuman animals. In primary education, students are taught to add numbers in the decimal system, starting with single digits and progressively tackling more difficult problems. Mechanical aids range from the ancient abacus to the modern computer, where research on the most efficient implementations of addition continues to this day.
Addition is the mathematical process of putting things together.
Addition may also refer to:
 Addition (logic), a simple logic argument form
 Addition reaction, a chemical reaction combining molecules
 Addition (rhetoric), one of the four fundamental rhetorical operations
 "Addition", a song by No Devotion from Permanence
Usage examples of "addition".
An attempt to abscond could mean three months and a hundred lashes in addition.
It seems likely that she, too, was mercilessly abused just as her predecessors had been abused, with the addition of new and even more horrifying variations.
The addition of a little sodium acetate to the solution after the final neutralising has a good effect.
Next add a strong solution of sodium acetate, until the solution ceases to darken on further addition, then dilute with water to half a litre.
The addition of potassium chromate to the acetate solution reprecipitates the lead as a yellow chromate.
The determination is rendered sharper and less liable to error by the addition of a few drops of acetic acid to convert the chromate into bichromate.
If acetic acid is used instead of nitric in the first instance this addition of water is unnecessary.
The bismuth is precipitated by the addition of ammonic carbonate, and the solution, after filtering and acidifying with nitric acid, is reelectrolysed.
In addition, a fledgling has to contend with the devastating effect of daylight, the ability to see, hear and smell things way beyond mortal capabilities, and an extraordinary mental acuity to mold mortal minds.
At first Mr Passant, the postmaster, made some difficulties but at last he consented and to my surprise he handed me, in addition to a letter for my mother, one addressed to Bissett.
In addition to the pass, the adjoint had given Leigh a note to his cousin.
Its efficacy may be increased in this disease by adding to each bottle one ounce of the acetate of potash, and, when thus modified, it may be administered in the same manner as if no addition had been made to it.
In addition, because businesses in the enclosed center no longer had to advertise to passing car traffic, their storefronts could be more subdued and harmonious.
In addition to the news, weather and traffic, you receive advertised messages.
The arena of advertising In addition to traditional outdoor billboards, aerial advertising, shelters and transit, another popular forum for business advertising is sports arenas.