The Andean medicinal herb Lepidium meyenii, or an extract of the root of this plant.

plural of maca

A fanatical advocate of the Macintosh computer system.

(uncountable) The surface of a road consisting of layers of crushed stone (usually tar-coated for modern traffic). / (US, dated, countable) Any road or street.

(transitive) To cover or surface with macadam.

(Britain) The process of paving roads with macadam.

A macaque, or similar monkey.

(obsolete) Any of several species of lemurs.

Representing or personifying death. / Obsessed with death or the gruesome. / Ghastly, shocking, terrifying.

Any of various parrots of the genera Ara, Anodorhynchus, Cyanopsitta, Orthopsittaca, Primolius and Diopsittaca of Central and South America, including the largest parrots and characterized by long sabre-shaped tails, curved powerful bills, and usually brilliant plumage.