phy·​let·​ic fī-ˈle-tik How to pronounce phyletic (audio)
: of or relating to evolutionary change in a single line of descent without branching
phyletically adverb

Examples of phyletic in a Sentence

Recent Examples on the Web This phyletic gradualism and the scale independence of evolutionary process has been challenged, in particular from the domain of developmental biology (albeit, not all ,or even most, developmental biologists). Razib Khan, Discover Magazine, 16 Sep. 2010

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'phyletic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary phyl- + -etic (as in genetic)

First Known Use

1877, in the meaning defined above

Time Traveler
The first known use of phyletic was in 1877

Dictionary Entries Near phyletic

Cite this Entry

“Phyletic.” Dictionary, Merriam-Webster, Accessed 27 May. 2024.

Medical Definition


phy·​let·​ic fī-ˈlet-ik How to pronounce phyletic (audio)
: of or relating to the course of evolutionary or phylogenetic development
phyletically adverb
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!