facultative

Definitions

  • WordNet 3.6
    • adj facultative not compulsory "facultative courses in the sciences"
    • adj facultative granting a privilege or permission or power to do or not do something "a facultative enactment"
    • adj facultative able to exist under more than one set of conditions "a facultative parasite can exist as a parasite or a saprophyte"
    • adj facultative of or relating to the mental faculties
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Webster's Revised Unabridged Dictionary
    • Facultative Having relation to the grant or exercise faculty, or authority, privilege, license, or the like hence, optional; as, facultative enactments, or those which convey a faculty, or permission; the facultative referendum of Switzerland is one that is optional with the people and is necessary only when demanded by petition; facultative studies;opposed to obligatory and compulsory, and sometimes used with to.
    • Facultative (Biol) Of such a character as to admit of existing under various forms or conditions, or of happening or not happening, or the like;
    • Facultative (Physiol) Pertaining to a faculty or faculties. "In short, there is no facultative plurality in the mind; it is a single organ of true judgment for all purposes, cognitive or practical."
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Century Dictionary and Cyclopedia
    • facultative Conferring a faculty, right, or power; enabling.
    • facultative Hence Conferring the power of doing or not doing; rendering optional or contingent.
    • facultative Having a faculty or power, but exercising it only occasionally or incidentally, or failing to exercise it; occasional or incidental; optional or contingent. Compare obligate.
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Chambers's Twentieth Century Dictionary
    • adj Facultative optional: of or pertaining to a faculty
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Etymology

Webster's Revised Unabridged Dictionary
L. facultas, -atis, faculty: cf. F. facultatif, G. fakultativ,
Chambers's Twentieth Century Dictionary
Fr.,—L. facultatemfacilis, easy.

Usage

In literature:

Memoires pour servir a l'histoire de la Faculte de Medicine de Montpellier, 1767.
"Travels Through France and Italy" by Tobias Smollett
Je ne passais plus l'eau que pour aller a la Faculte et j'en revenais sitot apres le cours ou l'hopital.
"Histoires grises" by E. Edouard Tavernier
Goldschmidt, R. A Case of Facultative Parthenogenesis.
"Taboo and Genetics" by Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
By Paul Janet, Member of the Institute of France, Professor of Philosophy at the Paris Faculte des Lettres.
"What is Darwinism?" by Charles Hodge
In some cantons the referendum is obligatory, in others it is "facultative," or optional.
"The Governments of Europe" by Frederic Austin Ogg
These a la faculte de Medecine de Strasbourg.
"History of Circumcision from the Earliest Times to the Present" by Peter Charles Remondino
The enumeration of the anaerobic organisms (including the facultative anaerobes).
"The Elements of Bacteriological Technique" by John William Henry Eyre
The great majority of milk bacteria are either obligate or facultative aerobes.
"Outlines of Dairy Bacteriology, 8th edition" by H. L. Russell
The greater number of the organisms are facultative anaerobes and oxygen is not necessary.
"The Bacillus of Long Life" by Loudon Douglas
Cette puissance de concentration etait une de ses facultes les plus remarquables.
"Methods of Authors" by Hugo Erichsen
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In science:

Permanent address: D´epartement de Math´ematiques, Facult´e des Sciences, Parc de Grandmont, F37200 Tours, France.
Manifold structures for sets of solutions of the general relativistic constraint equations
Permanent address: D´epartement de Math´ematiques, Facult´e des Sciences, rue Louis Pasteur, F84000 Avignon, France.
Manifold structures for sets of solutions of the general relativistic constraint equations
Permanent address, Universit´e Moulay Ismail, Facult´e des Sciences et Techniques, D´epartement de Math´ematiques, Groupe de Physique Math´ematique, Boutalamine B.P.509, Errachidia, Morocco.
Between Quantum Virasoro Algebra \cal{L}_c and Generalized Clifford Algebras
Permanent address: D´epartement de Math´ematiques, Facult´e des Sciences, Parc de Grandmont, F37200 Tours, France.
KIDs are non-generic
Buskulic for many helpful advices, comments and fascinating discussions. I acknowledge my colleagues and friends from the Centre de Physique des Particules de Marseille, the Centre de Physique Th´eorique and the Facult´e de Luminy for their kindness and interest in my work, particularly P.
Negative energies and time reversal in Quantum Field Theory
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