simplex in Bulgarian

(anatomy, historical) Of an eye: (supposedly) having pigment on only the posterior surface of the iris and not the anterior surface, and thus appearing blue; this was later found to be inaccurate, as eye colour is due to the amount of pigment in the anterior surface of the iris; also, of eye pigmentation: present only on the posterior surface of the iris; and of a person: having eyes with this form of pigmentation.

(computing, telecommunications) Of a circuit or device: involving signals which travel in one direction at a time; unidirectional.

(originally, and, chiefly, US) Of an apartment (or, sometimes, another type of property): having only one floor or storey; single-storey.

(algebraic, _, topology, geometry) A generalization of a triangle or tetrahedron to an arbitrary dimension, the generalization being the simplest possible convex polytope for a given dimension; more accurately, the convex hull of n+1 affinely independent points in n-dimensional space.

(originally, and, chiefly, US) An apartment (or, sometimes, another type of property) having only one floor or storey; a single-storey property.