gen·o·type (jĕnə-tīp′, jēnə-)
1. The genetic makeup, as distinguished from the physical appearance, of an organism or a group of organisms.
2. The combination of alleles located on homologous chromosomes that determines a specific characteristic or trait.
3. A specific combination of alleles at one or more loci on a chromosome.
[Greek genos, race; see genə- in the Appendix of Indo-European roots + Latin typus, type; see TYPE.]
gen′o·typic (-tĭpĭk), gen′o·typi·cal adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.