cornucopia

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A goat's horn overflowing with fruit, flowers, and grain, signifying prosperity. Also called horn of plenty.
2. n. Greek Mythology The horn of the goat that suckled Zeus, which broke off and became filled with fruit. In folklore, it became full of whatever its owner desired.
3. n. A cone-shaped ornament or receptacle.
4. n. An overflowing store; an abundance: a cornucopia of employment opportunities.

Century Dictionary and Cyclopedia

1. n. In classical antiquity, the horn of plenty (which see, under horn).
2. n. Hence A horn-shaped or conical vessel or receptacle; especially, such a vessel of paper or other material, filled or to be filled with nuts or sweetmeats.
3. n. [capitalized] [NL.] A genus of grasses whose spikes resemble the cornucopia in form.
4. n. An extension of the choroid plexus into each lateral recess of the fourth ventricle of the brain.

Wiktionary

1. n. Greek mythology A goat's horn endlessly overflowing with fruit, flowers and grain; or full of whatever its owner wanted.
2. n. A hollow horn- or cone-shaped object, filled with edible or useful things.
3. n. An abundance or plentiful supply.

GNU Webster's 1913

1. n. The horn of plenty, from which fruits and flowers are represented as issuing. It is an emblem of abundance.
2. n. (Bot.) A genus of grasses bearing spikes of flowers resembling the cornucopia in form.

WordNet 3.0

1. n. a goat's horn filled with grain and flowers and fruit symbolizing prosperity
2. n. the property of being extremely abundant