pin oak noun[ C ] uk /ˈpɪn ˌəʊk/ us /ˈpɪn ˌoʊk/ a tall North American oak tree: The shore of the lake is covered with pine trees and pin oaks. A large pin oak tore down power lines when it fell down in a residential neighbourhood of Omaha. See also
oak Tall pin oaks were growing along both sides of the lane. Many of the pin oak trees here are dying from a bacterial disease. We walked past pin oaks and pines until we came to a small pond. SMART Vocabulary: related words and phrases Deciduous trees acacia acer ailanthus alder almond fringe tree ginkgo hawthorn honey locust hornbeam quaking aspen red maple red oak rowan rubber tree wayfaring tree weeping willow white ash white birch white oak |