phylum


Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.
Related to phylum: phylum Chordata, phylum Cnidaria, phylum Echinodermata

phy·lum

 (fī′ləm)
n. pl. phy·la (-lə)
1. Biology A taxonomic category of organisms ranking below a kingdom and above a class. In the classification of plants, division often replaces phylum.
2. Linguistics A large division of possibly genetically related families of languages or linguistic stocks.

[New Latin phȳlum, from Greek phūlon, class; see bheuə- in Indo-European roots.]

phylum

(ˈfaɪləm)
n, pl -la (-lə)
1. (Biology) a major taxonomic division of living organisms that contain one or more classes. An example is the phylum Arthropoda (insects, crustaceans, arachnids, etc, and myriapods)
2. (Linguistics) any analogous group, such as a group of related language families or linguistic stocks
[C19: New Latin, from Greek phulon race]

phy•lum

(ˈfaɪ ləm)

n., pl. -la (-lə).
1. the primary subdivision of a taxonomic kingdom, grouping together all classes of organisms that have the same body plan.
2. a category consisting of language stocks that, because of cognates in vocabulary, are considered likely to be related by common origin.
[1875–80; < New Latin < Greek phŷlon group with common ancestry, tribe, akin to phyein to bring forth, produce, be]
phy′lar, adj.

phy·lum

(fī′ləm)
Plural phyla
A group of organisms ranking above a class and below a kingdom. See Table at taxonomy.

phylum

any of the basic divisions of the plant or animal kingdom. Cf. phylon.
See also: Botany
any of the basic divisions of the plant or animal kingdom.
See also: Classification
any of the major subdivisions of the plant or animal kingdom. Cf. phylon. See also linguistics.
See also: Animals

phylum

A major group of organisms that is a subdivision of a kingdom, e.g. mollusks.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phylum - (linguistics) a large group of languages that are historically related
linguistics - the scientific study of language
social group - people sharing some social relation
2.phylum - (biology) the major taxonomic group of animals and plants; contains classes
phylum Pyrrophyta, Pyrrophyta - a division of lower plants comprising unicellular and biflagellate algae that form starchy compounds
phylum Protozoa, Protozoa - in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers
Cryptophyta, phylum Cryptophyta - a phylum in the kingdom Protoctista
Chordata, phylum Chordata - comprises true vertebrates and animals having a notochord
Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammals
Arthropoda, phylum Arthropoda - jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes
phylum Porifera, Porifera - coextensive with the subkingdom Parazoa: sponges
Cnidaria, Coelenterata, phylum Cnidaria, phylum Coelenterata - hydras; polyps; jellyfishes; sea anemones; corals
Ctenophora, phylum Ctenophora - comb jellies; sea acorns; a small phylum formerly considered a class of Coelenterata
Acanthocephala, phylum Acanthocephala - phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms
Chaetognatha, phylum Chaetognatha - arrowworms: a group of small active transparent marine worms
phylum Rotifera, Rotifera - a phylum including: rotifers
Aschelminthes, Nematoda, phylum Aschelminthes, phylum Nematoda - unsegmented worms: roundworms; threadworms; eelworms
Annelida, phylum Annelida - segmented worms: earthworms; lugworms; leeches
Mollusca, phylum Mollusca - gastropods; bivalves; cephalopods; chitons
Phoronida, Phoronidea, phylum Phoronida - small phylum of wormlike marine animals
Bryozoa, phylum Bryozoa, polyzoa - marine or freshwater animals that form colonies of zooids
Ectoprocta, phylum Ectoprocta - coextensive with or a subphylum of Bryozoa
Endoprocta, Entoprocta, phylum Entoprocta - sometimes considered a subphylum of Bryozoa
Cycliophora, phylum Cycliophora - tiny marine organisms each the size of a period found in great numbers on lobsters' lips; identified tentatively in 1995 as a new phylum or as possible link between Entoprocta and Ectoprocta
Brachiopoda, phylum Brachiopoda - marine invertebrates that resemble mollusks
phylum Sipuncula, Sipuncula - peanut worms
Echinodermata, phylum Echinodermata - radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers
biological science, biology - the science that studies living organisms
kingdom - the highest taxonomic group into which organisms are grouped; one of five biological categories: Monera or Protoctista or Plantae or Fungi or Animalia
taxon, taxonomic category, taxonomic group - animal or plant group having natural relations
subphylum - (biology) a taxonomic group ranking between a phylum and a class
class - (biology) a taxonomic group containing one or more orders
division - (botany) taxonomic unit of plants corresponding to a phylum
Translations

phylum

[ˈfaɪləm] N (phyla (pl)) (Bio) → filo m, phylum m

phylum

n pl <phyla> (Biol) → Stamm m
References in periodicals archive ?
The findings will not only provide insight into the key events during the transition to multicellularity but will also be the first study that directly relates a transition that was achieved under artificial conditions in the laboratory to one that actually happened more than 3 billion years ago in this phylum.
That mud carries DNA of a previously unknown and unusual phylum of one-celled microbes, researchers report online May 6 in Nature.
Group 1 (buccal mucosa, keratinized gingiva, and hard palate) demonstrated a predominance of organisms from the phylum Firmicutes (with a very high proportion [approximately 50%] from the genus Streptococcus) followed in relative abundance by the phyla Proteobacteria, Bacteroidetes and either Actinobacteria or Fusobacteria
35% of the sequences could not be assigned to any bacterial phylum in the control and the acarbose group, respectively.
List of available names in zoology, candidate part Phylum Rotifera, species-group names established before 1 January 2000.
Predominant phyla in average community compositions were Firmicutes, Actinobacteria and Bacteriodetes with no significant change in phylum level before and after intervention.
This phylum of bacteria is thought to be connected with obesity, diabetes and other gut-related diseases.
Phylum Verrucomicrobia presented 100% of genus Opitutus species (one sequence).
Biochemists, microbiologists, and similar scientists profile the bacteria phylum and the use of particular species in environmental protection.
As the father of modern taxonomy, Carl Linnaeus solidified binomial nomenclature as the universal naming system and introduced a hierarchical scientific classification system where every organism is placed in a kingdom, phylum, class, order, family, genus, and species based on defining characteristics.
The research, published online in the journal Gut, found c-section infants had lower levels of the major group of gut bacteria associated with good gut health, Bacteroidetes phylum, as well as chemicals that help curb allergic responses.
In this study, Caesarean section-delivered infants who are not entering the birth canal of the mother either lacked or displayed a delayed colonisation of one of the major gut phylum, the Bacteroidetes.