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aneuploidy

n.

abnormal number of chromosomes, 1934, from aneuploid (1931), Modern Latin, coined 1922 by G. Täckholm from an- (1) "not" + euploid, from Greek eu- "well, good" (see eu-) + -ploid, from ploos "fold" + -oid.

Online Etymology Dictionary, © 2010 Douglas Harper
aneuploidy in Medicine

aneuploidy

[ăn′yə-ploi′dē]

n.

The state of having a chromosome number that is not a multiple of the haploid number.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
aneuploidy in Science

aneuploidy

[ăn′yə-ploi′dē]

The state or condition of being aneuploid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.