Which applies here?
primary ['pra?m?r?]
adj
1. first in importance, degree, rank, etc.
2. first in position or time, as in a series
3. fundamental; basic
4. being the first stage; elementary
5. (Social Science / Education) (prenominal) of or relating to the education of children up to the age of 11
6. (Life Sciences & Allied Applications / Zoology) (of the flight feathers of a bird's wing) growing from the manus
7. (Electronics)
a. being the part of an electric circuit, such as a transformer or induction coil, in which a changing current induces a current in a neighbouring circuit a primary coil
b. (of a current) flowing in such a circuit Compare http://www.thefreedictionary.com/secondary
8. (Business / Commerce)
a. (of a product) consisting of a natural raw material; unmanufactured
b. (of production or industry) involving the extraction or winning of such products. Agriculture, fishing, forestry, hunting, and mining are primary industries Compare [7] http://www.thefreedictionary.com/tertiary [2]
9. (Chemistry) Chem
a. (of an organic compound) having a functional group attached to a carbon atom that is attached to at least two hydrogen atoms
b. (of an amine) having only one organic group attached to the nitrogen atom; containing the group NH2
c. (of a salt) derived from a tribasic acid by replacement of one acidic hydrogen atom with a metal atom or electropositive group
10. (Linguistics) Linguistics
a. derived from a word that is not a derivation but the ultimate form itself. Lovableis a primary derivative of love
b. (of Latin, Greek, or Sanskrit tenses) referring to present or future time Comparehttp://www.thefreedictionary.com/historic [3]
11. (Earth Sciences / Geological Science) Geology relating to magmas that have not experienced fractional crystallization or crystal contamination
n pl -ries
1. a person or thing that is first in rank, occurrence, etc.
2. (Government, Politics & Diplomacy) (in the US)
a. a preliminary election in which the voters of a state or region choose a party's convention delegates, nominees for office, etc. See also http://www.thefreedictionary.com/closed+primary, http://www.thefreedictionary.com/direct+primary, http://www.thefreedictionary.com/open+primary
b. a local meeting of voters registered with one party to nominate candidates, select convention delegates, etc. Full name primary election
3. (Fine Arts & Visual Arts / Colours) See http://www.thefreedictionary.com/primary+colour
4. (Life Sciences & Allied Applications / Zoology) any of the flight feathers growing from the manus of a bird's wing
5. (Electronics) a primary coil, winding, inductance, or current in an electric circuit
6. (Astronomy) Astronomy a celestial body around which one or more specified secondary bodies orbit the sun is the primary of the earth
[from Latin primarius of the first rank, principal, from primus first]
© HarperCollins Publishers 1991, 1994, 1998, 2000, 2003
primary variables : Those that are most important; the factors with the highest correlation for prediction.
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