| 释义 |
pin oak
noun
Etymology: so called from the persistence of the bases of dead branches which resemble pins driven into the trunk
: any of several American oaks (as a bastard oak or laurel oak); especially : a large symmetrical pyramidal oak (Quercus palustris) that is native to the northeastern United States but widespread in cultivation and has deeply pinnatifid leaves which turn brilliant red in the fall and rather small almost hemispherical acorns — called also swamp oak |