tetraploid

[te-truh-ploid]

adjective Biology.

having a chromosome number that is four times the basic or haploid number.

noun

a tetraploid cell or organism.

Origin of tetraploid

First recorded in 1925–30; tetra- + -ploid
Related formstet·ra·ploi·dy, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for tetraploidy

tetraploid

adjective

having four times the haploid number of chromosomes in the nucleus

noun

a tetraploid organism, nucleus, or cell
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

tetraploidy in Medicine

tetraploid

[tĕtrə-ploid′]

adj.

Having four times the haploid number of chromosomes in the cell nucleus.

n.

A tetraploid individual.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.