Biology. a walled, single- to many-celled, reproductive body of an organism, capable of giving rise to a new individual either directly or indirectly.
a germ, germ cell, seed, or the like.
to bear or produce spores.
- sporal, adjective
- sporoid, adjective
- in·ter·spor·al, adjective
Other definitions for -spore (2 of 2)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use spore in a sentence
Anthrax, or Bacillus anthracis, is spore-forming bacteria found in soil that most commonly affects cattle.
The CDC says that about 60 percent of the people who inhale the spore do not contract valley fever.A Fungal-Caused Illness Called Valley Fever Is Being Called a Silent Epidemic | CNBC | January 28, 2014 | THE DAILY BEAST
spore, another spinoff, taught players about the randomly branching paths evolution can take.SimCity Is Smarter Than You (Even If You’re an Urban Planner) | Josh Dzieza | February 26, 2013 | THE DAILY BEAST
Budding (as in yeast) and spore formation are familiar to us in plants.Taboo and Genetics | Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
At length a hard coat forms around this cell, which has now become a spore.A Civic Biology | George William Hunter
Thus the spore of the sun—the whispering spheres—found a set of conditions fitted for growth.The Whispering Spheres | Russell Robert Winterbotham
This destroys the resisting power of the spore membrane and allows the stain to reach the interior.The Elements of Bacteriological Technique | John William Henry Eyre
This dissolves out any fat or crystals that might otherwise retain the "spore" stain.The Elements of Bacteriological Technique | John William Henry Eyre
British Dictionary definitions for spore
a reproductive body, produced by bacteria, fungi, various plants, and some protozoans, that develops into a new individual. A sexual spore is formed after the fusion of gametes and an asexual spore is the result of asexual reproduction
a germ cell, seed, dormant bacterium, or similar body
(intr) to produce, carry, or release spores
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
Scientific definitions for spore
A usually one-celled reproductive body that can grow into a new organism without uniting with another cell. Spores are haploid (having only a single set of chromosomes). Fungi, algae, seedless plants, and certain protozoans reproduce asexually by spores. Plant spores that are dispersed by the wind have walls containing sporopollenin.
A similar one-celled body in seed-bearing plants; the macrospore or microspore. The macrospore of seed-bearing plants develops into a female gametophyte or megagametophyte, which is contained within the ovule and eventually produces the egg cells. (The megagametophyte is also called the embryo sac in angiosperms.) The microspore of seed-bearing plants develops into the male microgametophyte or pollen grain. See endospore.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for spore
A reproductive cell or group of cells, produced by some plants, that is capable of developing into an adult plant without combining with another reproductive cell. Plants also produce sperm cells. The spores of nonflowering plants are analogous to the seeds of flowering plants. (See asexual reproduction; compare sexual reproduction.) Fungi and algae typically reproduce by means of spores that are carried by the wind or some other agency to a new location for growth.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.