queen olive

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A large edible variety of olive not used as a source of oil.

from the GNU version of the Collaborative International Dictionary of English.

• (Olive Trade) Properly, a kind of superior olive grown in the region of Seville, Spain. It is large size and oblong shape with a small but long pit; it is cured when green, keeps well, and has a delicate flavor. Loosely, any olive of similar character.