Definition of "simplex" [simplex]

• Consisting of or marked by only one part or element. (adjective)
• Of or relating to a telecommunications system in which only one message can be sent in either direction at one time. (adjective)
• Mathematics A Euclidean geometric spatial element having the minimum number of boundary points, such as a line segment in one-dimensional space, a triangle in two-dimensional space, or a tetrahedron in three-dimensional space. (noun)
• Linguistics A word that has no affixes and is not part of a compound; a simple word. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The vegetation is a short sparse wiry grassland dominated by Loudetia simplex, which is used as a fine thatching grass, and Monocymbium ceresiiforme."
• "“The simplex is a simple geometric mathematical object, an exercise in logistics, a triangle or trapezoid folded on itself,” says Aphrodite."
• "It is in view, probably, of this difficulty that Plato, in the Philebus, makes pleasure an element in the Term; the good is not defined as a simplex or set in Intellectual-Principle alone; while he rightly refrains from identifying the good with the pleasant, yet he does not allow"