|Compare metaxylem the first-formed xylem tissue, consisting of extensible thin-walled cells thickened with rings or spirals of lignin|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a stew of meat, vegetables, potatoes, etc.|
|protoxylem (prō'tə-zī'ləm) Pronunciation Key
The first formed xylem that differentiates from the procambium.