Entry 1 sense Webster, 1913 Linnæa borealis /(lĭn*nē"ȧ bō`rē̇*ā"lĭs)/ · Lin·næ·a bo·re·a·lis · IPA 01 n. The twin flower which grows in cold northern climates. 1. The twin flower which grows in cold northern climates.(Bot.)