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1. Of or relating to a mental faculty.
a. Capable of occurring or not occurring; contingent.
b. Not required or compulsory; optional.
3. Granting permission or authority.
4. Biology Capable of functioning under varying environmental conditions. Used of certain organisms, such as bacteria that can live with or without oxygen.
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.
1. (Law) empowering but not compelling the doing of an act
2. (Philosophy) philosophy that may or may not occur
3. (Insurance) insurance denoting a form of reinsurance in which the reinsurer has no obligation to accept a particular risk nor the insurer to reinsure, terms and conditions being negotiated for each reinsurance
4. (Biology) biology able to exist under more than one set of environmental conditions: a facultative parasite can exist as a parasite or a saprotroph. Compare obligate4
5. of or relating to a faculty
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
fac•ul•ta•tive(ˈfæk əlˌteɪ tɪv)
1. conferring a faculty, privilege, permission, or the power of doing or not doing something: a facultative enactment.
2. being left to one's option or choice; optional.
3. having the capacity to live under more than one specific set of environmental conditions, as a plant that can lead either a parasitic or a nonparasitic life (opposed to obligate).
4. of or pertaining to the mental faculties.
5. having the potential of taking place or assuming a specified character.
[1810–20; < French]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Adj.||1.||facultative - of or relating to the mental faculties|
|2.||facultative - able to exist under more than one set of conditions; "a facultative parasite can exist as a parasite or a saprophyte"|
obligate - restricted to a particular condition of life; "an obligate anaerobe can survive only in the absence of oxygen"
|3.||facultative - granting a privilege or permission or power to do or not do something; "a facultative enactment"|
enabling - providing legal power or sanction; "an enabling resolution"; "enabling power"
|4.||facultative - not compulsory; "facultative courses in the sciences"|
optional - possible but not necessary; left to personal choice
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. voluntario, no obligatorio;
2. de naturaleza profesional.
English-Spanish Medical Dictionary © Farlex 2012