Noun has 2 senses

• pin oak(n = noun.plant) quercus palustris, swamp oak - fast-growing medium to large pyramidal deciduous tree of northeastern United States and southeastern Canada having deeply pinnatifid leaves that turn bright red in autumn; thrives in damp soil;


• pin oak(n = noun.plant) laurel oak, quercus laurifolia - large nearly semi-evergreen oak of southeastern United States; thrives in damp soil;