| 释义 |
sapwood
\ˈ ̷ ̷ˌ ̷ ̷\ noun
Etymology: sap (I) + wood
: the younger softer living or physiologically active outer portion of wood that lies between the cambium and the heartwood and is more permeable, less durable, and usually lighter in color than the heartwood to which it is ultimately converted — called also alburnum |