Stevens Nettie Maria


Also found in: Medical, Idioms.

Stevens

, Nettie Maria 1861-1912.
American biologist whose studies on insect chromosomes led to the discovery of the chromosomal determination of sex.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.