1. Consisting of or marked by only one part or element.
2. Of or relating to a telecommunications system in which only one message can be sent in either direction at one time.
n. pl. sim·plex·es or sim·pli·ces (-plĭ-sēz′)
1. 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.
2. Linguistics A word that has no affixes and is not part of a compound; a simple word.
[Latin, simple; see sem-1 in the Appendix of Indo-European roots.]
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