Angiosperm

n. plant whose seeds are contained in an ovary or fruit

The flowering plants or angiosperms are the most widespread group of land plants. The flowering plants and the gymnosperms comprise the two extant groups of seed plants. The flowering plants are distinguished from other seed plants by a series of apomorphies, or derived characteristics.
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Noun
1. plants having seeds in a closed ovary
(synonym) flowering plant
(hypernym) spermatophyte, phanerogam, seed plant
(hyponym) angiocarp
(member-holonym) Angiospermae, class Angiospermae, Magnoliophyta, division Magnoliophyta, Anthophyta, division Anthophyta
(part-meronym) flower, bloom, blossom

(n.)
A plant which has its seeds inclosed in a pericarp.
  

The most recently evolved and the largest group of plants whose reproductive organs are in their flowers (flowering plants). A superclass in the sperm plants (Spermatophyta) division belonging to the vascular plants (Tracheophyta) phylum of the plant kingdom. They are divided into two subclasses: Dicots (Magnoliopsida such as magnolia, dandelion, roses, violet) and Monocots (Liliopsida such as lilly, iris, orchid, grasses). Their ovules are enclosed in the carpel and pollen travels through the pollen tube to reach it. Angiosperms evolved in the Cretaceous era together with the Mammals.