STUMPAGE n. 2 definitions
Timber in standing trees, -- often sold without the land at a fixed price per tree or per stump, the stumps being counted when the land is cleared. [Local, U.S.] Only trees above a certain size are allowed to be cut by loggers buying stumpage from the owners of land. C. S. Sargent.
FRUSTUM n. 2 definitions
The part of a solid next the base, formed by cutting off the, top; or the part of any solid, as of a cone, pyramid, etc., between two planes, which may be either parallel or inclined to each other.