pyramid
/ˈpɪɹəmɪd/noun
Definitions
An ancient massive construction with a square or rectangular base and four triangular sides meeting in an apex, such as those built as tombs in Egypt or as bases for temples in Mesoamerica.
A construction in the shape of a pyramid, usually with a square or rectangular base.
A solid with triangular lateral faces and a polygonal (often square or rectangular) base.
A medullary pyramid, the medial-most bumps on the ventral side of the medulla oblongata
verb
Definitions
To build up or be arranged in the form of a pyramid.
To combine (a series of genes) into a single genotype.
To employ, or take part in, a pyramid scheme.
To engage in pyramid trading.