pre obligate


[v. ob-li-geyt; adj. ob-li-git, -geyt]
verb (used with object), obligated, obligating.
to bind or oblige morally or legally: to obligate oneself to purchase a building.
to pledge, commit, or bind (funds, property, etc.) to meet an obligation.
morally or legally bound; obliged; constrained.
necessary; essential.
Biology. restricted to a particular condition of life, as certain organisms that can survive only in the absence of oxygen: obligate anaerobe (opposed to facultative ).

1400–50; late Middle English obligat (adj.) < Latin obligātus (past participle of obligāre to bind), equivalent to ob- ob- + ligātus; see ligate

obligable [ob-li-guh-buhl] , adjective
obligator, noun
nonobligated, adjective
preobligate, verb (used with object), preobligated, preobligating.
quasi-obligated, adjective
reobligate, verb (used with object), reobligated, reobligating.
unobligated, adjective

obligate, oblige. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
obligate (ˈɒblɪˌɡeɪt)
1.  to compel, constrain, or oblige morally or legally
2.  (in the US) to bind (property, funds, etc) as security
3.  compelled, bound, or restricted
4.  biology Compare facultative able to exist under only one set of environmental conditions: an obligate parasite cannot live independently of its host
[C16: from Latin obligāre to oblige]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

from L. obligationem (see obligation). Oblige, with which it is confused, means "to do one a favor." Related: Obligated.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

obligate ob·li·gate (ŏb'lĭ-gĭt, -gāt')
Able to exist or survive only in a particular environment or by assuming a particular role.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
obligate   (ŏb'lĭ-gĭt, -gāt')  Pronunciation Key 
Capable of existing only in a particular environment or by assuming a particular role. An obligate aerobe, such as certain bacteria, can live only in the presence of oxygen. An obligate parasite cannot survive independently of its host. Compare facultative.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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