American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Double or twofold.
- adj. Genetics Having a pair of each type of chromosome, so that the basic chromosome number is doubled: diploid somatic cells.
- n. Genetics An organism or cell having diploid cells.
Century Dictionary and Cyclopedia
- n. In crystallography, a solid belonging to the isometric system, with 24 trapezoidal planes. It is the parallel-hemihedral form of hexoctahedron. Also called dyakis-dodecahedron.
- adj. cytology Of a cell, having a pair of each type of chromosome, one of the pair being derived from the ovum and the other from the spermatozoon. Most somatic cells of higher organisms are diploid.
- n. A cell which is diploid.
- n. An organism with diploid cells.
GNU Webster's 1913
- n. (Crystallog.) A solid bounded by twenty-four similar quadrilateral faces. It is a hemihedral form of hexoctahedron.
- n. (Biol.) a cell or organism having a number of chromosomes corresponding to two copies of each chromosome; a diploid cell or organism.
- adj. (Biol.) having a number of chromosomes corresponding to two copies of each chromosome; having double the basic number of chromosomes, as seen in a haploid cell. Contrasted to
- adj. of a cell or organism having two sets of chromosomes or twice the haploid number
- n. (genetics) an organism or cell having the normal amount of DNA per cell; i.e., two sets of chromosomes or twice the haploid number
- Greek diplous, double; see dwo- in Indo-European roots + -oid. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The term diploid describes a state in which a cell has two sets of homologous chromosomes, or two chromosomes that are the same.”
“Crucially, the finished sequence must cover at least 98 percent of all twenty-three pairs of chromosomes that is, the diploid genome at a stringent accuracy of 99.999 percent or just 1 error per 100,000 bases.”
“PE-2 yeast are what is known as diploid, having two copies each of 16 different chromosomes.”
“First he released a new "diploid" map of his own genome, looking at contributions from both parents instead of just one.”
“These primordial germ cells are diploid, meaning that they have all the normal chromosomes of the organism in pairs.”
“Most diploid, meaning that the cells of adults contain two copies of the genetic material.”
“Most higher animals and plants (including humans) have two copies of their genetic code in most of their cells through most of their life cycle (they are "diploid"), but polyploid organisms have a extra copies, usually in multiples of two so the material can be evenly divided during sexual reproduction.”
“L d ssp. stenocarpa) is outcrossing and has half as many chromosomes ( "diploid").”
“The DNA of these "egg-layers" have the normal two sets of chromosomes (diploid).”
“In fact, when the flesh from egg-laying (diploid) fish was exposed to the blood (sera) of people who are allergic to salmon, there was a whopping 52% increase in reaction levels.”
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