ploidy

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ploi·dy

(ploy'dē),
The number of haploid sets in a cell. Gametes normally contain one; somatic cells two.
See also: polyploidy.
[-ploid + -y, condition]
Farlex Partner Medical Dictionary © Farlex 2012

ploidy

(ploi′dē)
n.
A multiple of the basic number of chromosomes in a cell.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ploi·dy

(ploy'dē)
The number of haploid sets in a cell. Gametes normally contain one; autosomal cells, two.
See also: polyploidy
[ploid + -y, condition]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ploidy

The number of copies of the set of chromosomes in a cell. A normal diploid cell with two copies has a ploidy of two; a haploid cell with one copy, such as an ovum or a spermatozoon, has a ploidy of one.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

ploidy

the number of chromosome sets making up the total genome of an organism.

Thus the ploidy of normal humans is two and is written 2n. See DIPLOID (1).

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005