- single; simple.
- Biology. pertaining to a single set of chromosomes.
- Biology. an organism or cell having only one complete set of chromosomes, ordinarily half the normal diploid number.
Origin of haploid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for haploid
Haploid (n) chromosome numbers were determined from cells in diakinesis, metaphase I, and metaphase II of meiosis.Neotropical Hylid Frogs, Genus Smilisca
William E. Duellman
Each of these divides again by mitosis (the chromosomes splitting lengthwise), the half or haploid number remaining.Taboo and Genetics
Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
The next stage is their separation to the haploid daughter-nuclei, which have resulted from the reduction process.Darwin and Modern Science
A.C. Seward and Others
Technically the tissue-cells are said to contain the diploid number of chromosomes, the gametes the reduced or haploid number.Being Well-Born
Michael F. Guyer
- (esp of gametes) having a single set of unpaired chromosomes
- a haploid cell or organism
C20: from Greek haploeidēs single, from haplous single
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for haploid
1908, from German haploid (1905), from Greek haplos "single."
Online Etymology Dictionary, © 2010 Douglas Harper
- Having the same number of sets of chromosomes as a germ cell, or half the diploid number of a somatic cell. The haploid number (23 in humans) is the normal chromosome complement of germ cells.
- A haploid organism or cell.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Having a single set of each chromosome in a cell or cell nucleus. In most animals, only the gametes (reproductive cells) are haploid. Compare aneuploid diploid. See Note at mitosis.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.