A magnolia is a kind of tree with white, pink, yellow, or purple flowers.
2. colour
You can use magnolia to describe things that are creamy-white in colour.
magnolia in British English
(mæɡˈnəʊlɪə)
noun
1.
any tree or shrub of the magnoliaceous genus Magnolia of Asia and North America: cultivated for their white, pink, purple, or yellow showy flowers
2.
the flower of any of these plants
3.
a very pale pinkish-white or purplish-white colour
Word origin
C18: New Latin, named after Pierre Magnol (1638–1715), French botanist
magnolia in American English
(mægˈnoʊliə; mægˈnoʊljə)
US
noun
1.
any of a genus (Magnolia) of trees or shrubs of the magnolia family, with large, fragrant flowers of white, pink, or purple
2.
the flower
adjective
3.
designating a family (Magnoliaceae, order Magnoliales) of dicotyledonous trees, shrubs, and,sometimes, vines, including the cucumber tree and the tulip tree