What does "sapwood" mean?

The wood just under the bark of a stem or branch; it differs from the heartwood in color and in physiologic activity (flow of sap).

What is a synonym for "sapwood"?

Common synonyms include: alburnum, alburnum.

//ˈsapwʊd// noun

noun ·Rare ·Advanced level

Noun

1
The wood just under the bark of a stem or branch; it differs from the heartwood in color and in physiologic activity (flow of sap). countable, uncountable
"A popular myth is that sapwood is not as strong as heartwood."
2
newly formed outer wood lying between the cambium and the heartwood of a tree or woody plant; usually light colored; active in water conduction wordnet