angiosperm

noun

an·gio·sperm | \ ˈan-jē-ə-ˌspərm

Definition of angiosperm

: any of a class (Angiospermae) or division (Magnoliophyta) of vascular plants (such as magnolias, grasses, oaks, roses, and daisies) that have the ovules and seeds enclosed in an ovary, form the embryo and endosperm by double fertilization, and typically have each flower surrounded by a perianth composed of two sets of floral envelopes comprising the calyx and corolla

— called also flowering plant

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The oldest and biggest angiosperm trees in the world, the African baobabs, are dying or already dead, an international team of scientists has found. — Amina Khan, latimes.com, "Africa's baobab trees can live for more than 1,000 years, but the oldest and largest of them are dying," 11 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'angiosperm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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angiotensin converting enzyme

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The first known use of angiosperm was circa 1828

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angiosperm

noun

an·gio·sperm | \ ˈan-jē-ə-ˌspərm

Medical Definition of angiosperm

: any of a class (Angiospermae) of vascular plants (as orchids or roses) that have the seeds in a closed ovary and include the monocotyledons and dicotyledons — compare gymnosperm