Definition that contains acorn
- oak a deciduous tree of the genus Quercus; has acorns and lobed leaves
- mast nuts of forest trees (as beechnuts and acorns) accumulated on the ground
- ctenophora comb jellies; sea acorns; a small phylum formerly considered a class of Coelenterata
- acorn-shaped shaped like an acorn
- valley oak tall graceful deciduous California oak having leathery leaves and slender pointed acorns
- quercus arizonica semi-evergreen shrub or small tree of Arizona and New Mexico having acorns with hemispherical cups
- huckleberry oak a low spreading or prostrate shrub of southwestern United States with small acorns and leaves resembling those of the huckleberry
- california white oak tall graceful deciduous California oak having leathery leaves and slender pointed acorns
- roble tall graceful deciduous California oak having leathery leaves and slender pointed acorns
- quercus shumardii large deciduous red oak of southern and eastern United States having large seven-lobed to nine-lobed elliptical leaves, large acorns and medium hard coarse-grained wood