vascular plant vas·cu·larp·lant uncommon noun 1. green plant having a vascular system: ferns, gymnosperms, angiosperms Synonymsvascular planttracheophyte Related words Broader terms plant Narrower terms pteridophytespermatophyteherbhalophytesucculentcultivarcultivated plantweed Part of vascular systemductvascular tissue WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.