unipotent

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u·ni·po·tent

 (yo͞o-nĭp′ə-tənt)
adj.
Capable of developing into only one type of cell or tissue.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

unipotent

(ˌjuːnɪˈpəʊtənt)
adj
able to form only one type of cell or tissuehaving only one idempotent component
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Assume that [rho], [sigma], [tau] satisfy the conditions [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] (the identity matrix) and [I.sub.2][I.sub.3] is a unipotent element. We call the group generated by [I.sub.1], [I.sub.2] and [I.sub.3] a complex hyperbolic triangle group of type (n,n, [infinity]; k) and denote it by [GAMMA](n,n, [infinity]; k).
of Oregon) acknowledge that much has already been written about the theory of unipotent elements in simple algebraic groups over algebraically closed or finite fields, and nilpoint elements in the corresponding simple Lie algebras.