spore

1 of 3

noun

: a primitive usually unicellular often environmentally resistant dormant or reproductive body produced by plants, fungi, and some microorganisms and capable of development into a new individual either directly or after fusion with another spore
spored adjective

spore

2 of 3

verb

spored; sporing

intransitive verb

: to produce or reproduce by spores

-spore

3 of 3

noun combining form

: spore having (such) a characteristic or origin
aeciospore

Example Sentences

Recent Examples on the Web
Noun
The genomes, from three fern species and a cycad, one of the oldest kinds of seed-bearing plants, show genes key to making seeds are the same as those in the spore-producing machinery of ferns, which emerged tens of millions of years earlier. Byelizabeth Pennisi, science.org, 22 Sep. 2022 This concentration difference allows the spore to store potential energy. WIRED, 31 Oct. 2022 Here’s a spooky conundrum: Is a spore alive or dead? WIRED, 31 Oct. 2022 Batrachochytrium dendrobatidis, a virulent spore-forming pathogen generally known as Bd, originated in Asia and probably spread for decades before its damage began to be noticed in the 1980s. WIRED, 21 Sep. 2022 The bacterial milky spore disease, Bacillus popillae, kills Japanese beetle grubs in the soil. Tim Johnson, Chicago Tribune, 16 July 2022 Inspect the wood for dry rot by looking for spore dust, fruiting bodies of fungus, or a lingering damp or musty smell. Timothy Dale, Better Homes & Gardens, 5 July 2022 Our supplement also includes a 20 million-spore probiotic, which has been found to aid with IBS symptoms. The Salt Lake Tribune, 13 June 2022 Our supplement also has a 20 million-spore probiotic, which has been found to help with IBS symptoms. The Salt Lake Tribune, 6 June 2022
Verb
Two different strains will not contribute equally to spore and stalks. Quanta Magazine, 5 Nov. 2015 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spore.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

Noun

New Latin spora seed, spore, from Greek, act of sowing, seed, from speirein to sow — more at sperm

Noun combining form

borrowed from New Latin -spora spore entry 1

First Known Use

Noun

1836, in the meaning defined above

Verb

1866, in the meaning defined above

Time Traveler
The first known use of spore was in 1836

Dictionary Entries Near spore

Cite this Entry

“Spore.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spore. Accessed 5 Dec. 2022.

Kids Definition

spore 1 of 2

noun

ˈspō(ə)r How to pronounce spore (audio)
ˈspȯ(ə)r
: a reproductive body that is produced by fungi and by some plants and microorganisms (as ferns and bacteria) and that usually consists of a single cell and is able to produce a new individual either by developing by itself or after fusion with another spore
spored
ˈspō(ə)rd How to pronounce spore (audio)
ˈspȯ(ə)rd
adjective

spore

2 of 2

verb

spored; sporing
: to produce or reproduce by spores

Medical Definition

: a primitive usually unicellular often environmentally resistant dormant or reproductive body produced by plants, fungi, and some microorganisms and capable of developing into a new individual either directly or after fusion with another spore

spore

2 of 2

intransitive verb

spored; sporing
: to produce or reproduce by spores

More from Merriam-Webster on spore

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