PROTOXYLEM


Meaning of PROTOXYLEM in English

Pronunciation: ˌ pr ō -t ə - ' z ī -l ə m, - ˌ lem

Function: noun

Date: 1887

: the first-formed xylem developing from procambium and consisting of narrow cells with annular, spiral, or scalariform wall thickenings

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.