protostele

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

noun

, Botany.

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

protostele

/ ˈprəʊtəˌstiːl; -ˌstiːlɪ /

noun

1. 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

protostele

/ prō′tə-stēl′,prō′tə-stē′lē /

1. 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.

Derived Forms

• ˌprotoˈstelic, adjective

Other Words From

• pro·to·ste·lic [proh-t, uh, -, stee, -lik], adjective

Word History and Origins

Origin of protostele¹

First recorded in 1900–05; proto- + stele