phylum

noun

phy·​lum ˈfī-ləm How to pronounce phylum (audio)
plural phyla ˈfī-lə How to pronounce phylum (audio)
1
a
: a direct line of descent within a group
b
: a group that constitutes or has the unity of a phylum
specifically : a primary category in biological taxonomy especially of animals that ranks above the class and below the kingdom compare division sense 10
2
: a group of languages related more remotely than those of a family or stock

Examples of phylum in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Even in the face of extinction, existing body plans—think of higher taxonomic categories such as phylum, class, or order—rarely disappear entirely. Leigh Phillips, The Atlantic, 9 July 2024 The animals are the first transgenic echinoderms, the phylum that includes starfish, sea cucumbers and other marine animals. Corinne Purtill, Los Angeles Times, 29 May 2024 Like humans, tunicates belong to the phylum Chordata. Elizabeth Rayne, Ars Technica, 16 July 2023 Within that clade, most of these species are from the class Clostridia in the phylum Firmicutes, a phylum of bacteria important to gut health. Elizabeth Rayne, Ars Technica, 27 Jan. 2024 See all Example Sentences for phylum 

Word History

Etymology

New Latin, from Greek phylon tribe, race — more at phyl-

First Known Use

1868, in the meaning defined at sense 1a

Time Traveler
The first known use of phylum was in 1868

Dictionary Entries Near phylum

Cite this Entry

“Phylum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phylum. Accessed 22 Nov. 2024.

Kids Definition

phylum

noun
phy·​lum ˈfī-ləm How to pronounce phylum (audio)
plural phyla -lə How to pronounce phylum (audio)
: a group of animals or in some classifications plants sharing one or more major characteristics that set them apart from all other animals or plants and forming one of the main categories in biological classification that ranks above the class and below the kingdom compare division sense 8

Medical Definition

phylum

noun
phy·​lum ˈfī-ləm How to pronounce phylum (audio)
plural phyla -lə How to pronounce phylum (audio)
: a major group of animals or in some classifications plants sharing one or more fundamental characteristics that set them apart from all other animals and plants and forming a primary category of the animal or plant kingdom
the phylum Arthropoda

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