A tower made of people standing or kneeling on top of each other. / (circus) A formation of triangular shape with one or a small number of performers supporting a large number of other performers.

(anatomy) A major collection of axons that transmits nerve impulses from the motor cortex to the spinal cord.

A pyramid-shaped diagram in layers, where each layer represents a group of animals that feeds on the layer below.

A diagram that shows the relative amounts of energy or matter, or numbers of organisms within each trophic level in a food chain or food web.

(mathematics) A number that represents the number of items in a pyramid having a given number of sides and layers

(anatomy) Any large, triangular-shaped neuron in the cerebral cortex that transmit impulses to voluntary muscles

plural of pyramidal neuron

plural of pyramidal tract

plural of pyramidal number

Alternative form of step pyramid