Southernmost region of South America.

Navigational tip of extending axons.

Seed-bearing structure of conifers.

Region influenced by past events.

Front tip of a rocket.

Cone with top cut off.

Cone with a circular base.

Small, steep volcanic cone formation.

Photoreceptors for color vision detection.

Mound-shaped accumulation of volcanic material.

Circular base tapering to point.

Surgical removal of cervical tissue.

Circular base tapering to point.

Two cones, bases touching centrally.

In linear algebra, a cone—sometimes called a linear cone for distinguishing it from other sorts of cones—is a subset of a vector space that is closed under positive scalar multiplication; that is, is a cone if implies for every .