Definitions for obligateˈɒb lɪˌgeɪt; ˈɒb lɪ gɪt, -ˌgeɪt
Random House Webster's College Dictionary
ob•li•gateˈɒb lɪˌgeɪt; ˈɒb lɪ gɪt, -ˌgeɪt(v.; adj.)-gat•ed, -gat•ing
(v.t.)to bind or oblige morally or legally.
to commit (funds, property, etc.) to meet an obligation.
(adj.)restricted to a particular condition of life, as certain organisms that can survive only in the absence of oxygen
Ref: (opposed to facultative 4 )
Origin of obligate:
1400–50; late ME obligat (adj.) < L obligāre to bind =ob-ob-+ligāre; see ligate
restricted to a particular condition of life
"an obligate anaerobe can survive only in the absence of oxygen"
compel, oblige, obligate(verb)
force somebody to do something
"We compel all students to fill out this form"
commit in order to fulfill an obligation
oblige, bind, hold, obligate(verb)
bind by an obligation; cause to be indebted
"He's held by a contract"; "I'll hold you by your promise"
To bind, compel, or constrain by a social, legal, or moral tie. See Synonyms at force.
To cause to be grateful or indebted; to oblige.
To commit (money, for example) in order to fulfill an obligation.
Able to exist or survive only in a particular environment or by assuming a particular role: an obligate parasite; an obligate anaerobe.
Absolutely indispensable; essential.
Origin: From obligātus, past participle of obligo.
to bring or place under obligation, moral or legal; to hold by a constraining motive
to bind or firmly hold to an act; to compel; to constrain; to bind to any act of duty or courtesy by a formal pledge