• Webster's Revised Unabridged Dictionary
    • a Magnoliaceous (Bot) Pertaining to a natural order (Magnoliace√¶) of trees of which the magnolia, the tulip tree, and the star anise are examples.
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Century Dictionary and Cyclopedia
    • magnoliaceous Of or pertaining to plants of the natural order Magnoliaceœ; resembling the magnolia.
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In literature:

Urtica urens, and urentior occur about the houses, Cupressus pendula and a Magnoliaceous tree, with exquisitely fragrant blossoms.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith