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phylogeny

American  
[fahy-loj-uh-nee] / faɪˈlɒdʒ ə ni /
Also phylogenesis

noun

  1. the development or evolution of a particular group of organisms.

  2. the evolutionary history of a group of organisms, especially as depicted in a family tree.


phylogeny British  
/ ˌfaɪləʊˈdʒɛnɪsɪs, ˌfaɪləʊdʒɪˈnɛtɪk, ˌfaɪləʊˈdʒɛnɪk, faɪˈlɒdʒɪnɪ /

noun

  1. biology the sequence of events involved in the evolution of a species, genus, etc Compare ontogeny

"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

phylogeny Scientific  
/ fī-lŏjə-nē /
  1. The evolutionary development and history of a species or higher taxonomic grouping of organisms.


Other Word Forms

Derived Forms

Etymology

Origin of phylogeny

First recorded in 1865–70; phylo- + -geny

Explanation

Use the noun phylogeny to describe the branch of biology that focuses on evolution and the differences between species. You're most likely to come across the word phylogeny in a biology class. It's another term for "phylogenetics," the study of evolution, diversity, and the way different organisms and species are related to each other. The German biologist Ernst Heinrich Haeckel was the first to use the word phylogeny, in 1866, and Darwin used it soon after. It combines the Greek phylos, "race," with geneia, "origin."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Phylogeny is important to everyday life in human society.

From Textbooks • Jun. 9, 2022

Averianov, A. O. & Lopatin, A. V. Phylogeny of triconodonts and symmetrodonts and the origin of extant mammals.

From Nature • Nov. 12, 2017

Phylogeny is the science that describes the relative connections between organisms, in terms of ancestral and descendant species.

From Textbooks • Jan. 1, 2015

Phylogeny of the Carnivora: basal relationships among the carnivoramorphans, and assessment of the position of ‘Miacoidea’ relative to Carnivora.

From Scientific American • Feb. 25, 2013

Phylogeny, fī-loj′e-ni, n. a biological term applied to the evolution or genealogical history of a race or tribe—also Phylogen′esis.—adv.

From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various

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