restricted to a particular condition of life, as an obligate seeder, a plant that can only reproduce by seed
restricted to a single mode of behavior or environmental condition (Morris 1992)
To bring or place under obligation, moral or legal; to hold by a constraining motive
An adjective referring to an environmental factor (for example, oxygen) which is always required for growth, for example, obligate aerobe Compare with facultative
force or compel somebody to do something; "We compel all students to fill out this form"
bind by an obligation; cause to be indebted; "He's held by a contract"; "I'll hold you by your promise"
restricted to a particular condition of life; "an obligate anaerobe can survive only in the absence of OXYGen
commit in order to fulfill an obligation; "obligate money" restricted to a particular condition of life; "an obligate anaerobe can survive only in the absence of OXYGen
Invariably A species which is unable to live outside of a given environment Applied to animals living in the dark zone of caves that may display Troglomorphic adaptions Biology - Flora & Fauna Ref AC
If something obligates you to do a particular thing, it creates a situation where you have to do it. The ruling obligates airlines to release information about their flight delays