red pine red·pine uncommon noun 1. tall New Zealand timber tree Synonymsrimuimou pinered pineDacrydium cupressinum 2. pine of eastern North America having long needles in bunches of two and reddish bark Synonymsred pineCanadian red pinePinus resinosa Related words Broader terms pineconifer Parts Dacrydium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.