[spee-sheez, -seez]

noun, plural spe·cies.


Horticulture. pertaining to a plant that is a representative member of a species, one that is not a hybrid or variety: a species rose; a species gladiolus.

Origin of species

1545–55; < Latin speciēs appearance, form, sort, kind, equivalent to spec(ere) to look, regard + -iēs abstract noun suffix
Related formssu·per·spe·cies, noun, plural su·per·spe·cies.un·der·spe·cies, noun, plural un·der·spe·cies.
Can be confusedgenus speciesspecie species specious


[spee-shee, -see]


coined money; coin.

Origin of specie

1545–55; < Latin (in) speciē (in) kind; see species
Can be confusedspecie species specious


[spee-shee, -see]

noun Nonstandard.

Origin of specie

by back formation, construing species as plural noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for species


noun plural -cies

  1. any of the taxonomic groups into which a genus is divided, the members of which are capable of interbreeding: often containing subspecies, varieties, or races. A species is designated in italics by the genus name followed by the specific name, for example Felis domesticus (the domestic cat)Abbreviation: sp
  2. the animals of such a group
  3. any group of related animals or plants not necessarily of this taxonomic rank
(modifier) denoting a plant that is a natural member of a species rather than a hybrid or cultivara species clematis
logic a group of objects or individuals, all sharing at least one common attribute, that forms a subdivision of a genus
a kind, sort, or varietya species of treachery
mainly RC Church the outward form of the bread and wine in the Eucharist
obsolete an outward appearance or form
obsolete specie

Word Origin for species

C16: from Latin: appearance, from specere to look



coin money, as distinguished from bullion or paper money
in specie
  1. (of money) in coin
  2. in kind
  3. lawin the actual form specified

Word Origin for specie

C16: from the Latin phrase in speciē in kind
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

Word Origin and History for species

1550s, a classification in logic, from Latin species "kind, sort," originally "appearance, sight, a seeing," related to specere "to look at, to see, behold," from PIE *spek- (see scope (n.1)). Biological sense is from c.1600. Endangered species first attested 1964.



1610s, "coin, money in the form of coins" (as opposed to paper money or bullion), from phrase in specie "in the real or actual form" (1550s), from Latin in specie "in kind," ablative of species "kind, form, sort" (see species).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for species


[spēshēz, -sēz]

n. pl. species

A fundamental category of taxonomic classification, ranking below a genus or subgenus and consisting of related organisms capable of interbreeding.
An organism belonging to such a category, represented in binomial nomenclature by an uncapitalized Latin adjective or noun following a capitalized genus name, as in the bacterium Escherichia coli.
A class of pharmaceutical preparations consisting of a mixture of dried plants in sufficiently fine division to be used in making boiled extracts or infusions.
A specific type of atomic nucleus, atom, ion, or molecule.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for species


[spēshēz, spēsēz]

A group of organisms having many characteristics in common and ranking below a genus. Organisms that reproduce sexually and belong to the same species interbreed and produce fertile offspring. Species names are usually written lower case and in italics, as rex in Tyrannosaurus rex. See Table at taxonomy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for species


[(spee-sheez, spee-seez)]

A group of closely related and interbreeding living things; the smallest standard unit of biological classification. Species can be divided into varieties, races, breeds, or subspecies. Red pines, sugar maples, cats, dogs, chimpanzees, and people are species; Siamese cats and beagles are varieties, not species. (See Linnean classification.)


The term can be used to refer to any group of related things: “This species of novel has become quite popular in recent years.”
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.

Idioms and Phrases with species


see endangered species.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.