mesarchy
mesarchy noun: a vascular system in which development spreads both toward and away from the axis center.
Noun
mesarchy (uncountable)
- A vascular system in which development spreads both toward and away from the axis center.
- There is no doubt, however, that if endarchy is primitive in the protostelic and immediately derived types, it very rapidly gives place to mesarchy and exarchy in response to various demands, and it is not difficult to show how this may have occurred.1908, Sir Arthur George Tansley, Lectures on the Evolution of the Filicinean Vascular System, page 16
- Fossil evidence supports neither the view that exarchy is more primitive than mesarchy, nor the view that mesarchy is more primitive than exarchy.1952, David William Bierhorst, On the Morphology, Anatomy, and Phylogeny of the Psilotaceae
Origin of mesarchy
From meso- + -archy.
Questions about mesarchy
- What does mesarchy mean?
- Mesarchy means a vascular system in which development spreads both toward and away from the axis center.
- What part of speech is mesarchy?
- Mesarchy is a noun.
Words near mesarchy in the dictionary
Source and license
Adapted from Wiktionary: mesarchy (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “mesarchy.” Word.ws, https://word.ws/mesarchy. Based on Wiktionary, CC BY-SA 4.0.