protostele

[ proh-tuh-steel, -stee-lee ]

/ ˈproʊ təˌstil, -ˌsti li /

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noun Botany.

the solid stele of most roots, having a central core of xylem enclosed by phloem.

QUIZ

THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?

Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.

Question 1 of 7

In the UK, COTTON CANDY is more commonly known as…

candystring

candyfloss

candypuff

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Origin of protostele

First recorded in 1900–05; proto- + stele

OTHER WORDS FROM protostele

pro·to·ste·lic

[proh-tuh-stee-lik], /ˌproʊ təˈsti lɪk/, adjective

Words nearby protostele

protopope, protoporphyrin, protopresbyter, Protosemitic, protostar, protostele, protostome, Proto team, prototherian, prototroph, prototrophic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use protostele in a sentence

In its simplest form (as in fig. 36) it is called a protostele, and is to be found in both living and fossil plants.
Ancient Plants|Marie C. Stopes
In the Coal Measure period, however, the protostele was characteristic of one of the two main groups of ferns.
Ancient Plants|Marie C. Stopes

British Dictionary definitions for protostele

protostele

/ (ˈprəʊtəˌstiːl, -ˌstiːlɪ) /

noun

a simple type of stele with a central core of xylem surrounded by a cylinder of phloem: occurs in most roots and the stems of ferns, etc

Derived forms of protostele

protostelic, adjective

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

Scientific definitions for protostele

protostele

[ prō′tə-stēl′, prō′tə-stē′lē ]

The most primitive form of stele, consisting of a solid core of xylem encased by phloem or of xylem interspersed with phloem. The roots of all vascular plants, as well as the stems of lycophytes, have protosteles.