ALL meanings of protoxylem
pro·to·xy·lem
P p - noun protoxylem the part of the primary xylem that develops first, consisting of narrow, thin-walled cells. 1
- noun protoxylem the first-formed xylem tissue, consisting of extensible thin-walled cells thickened with rings or spirals of lignin 0
- noun protoxylem the first formed xylem of a root or stem, produced by the differentiation of the procambium 0