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Any of various small fruit flies of the genus Drosophila, especially D. melanogaster, used extensively in genetic research.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
drosophilaA small fly of the genus Drosophila , especially the fruit fly Drosophila melanogaster which has been used for many years in genetic research mainly because of its four conspicuous chromosomes and relatively few and obvious characteristics.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
fruit flyany small dipterous fly (see DIPTERAN of the genus Drosophila, which has been used extensively in genetical investigations. D. melanogaster is probably the best-understood animal in terms of inheritance studies.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005