protostele

[ proh-tuh-steel, -stee-lee ]
/ ˈproʊ təˌstil, -ˌsti li /

noun Botany.

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

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

protoporphyrin ix, protopresbyter, protosemitic, protospasm, protostar, protostele, protostome, prototherian, prototroph, prototrophic, prototype

Example sentences from the Web for protostele

  • In the Coal Measure period, however, the protostele was characteristic of one of the two main groups of ferns.

    Ancient Plants |Marie C. Stopes

  • 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

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

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.