obligate

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obligate

 [ob´lĭ-gāt]
not facultative; necessary; compulsory; pertaining to or characterized by the ability to survive only in a particular environment or to assume only a particular role, as an obligate anaerobe.

ob·li·gate

(ob'li-gāt),
Without an alternative system or pathway.
[L. ob-ligo, pp. -atus, to bind to]

obligate

/ob·li·gate/ (ob´lĭ-gāt) pertaining to or characterized by the ability to survive only in a particular environment or to assume only a particular role, as an obligate anaerobe.

obligate

(ŏb′lĭ-gāt′)
adj. (-gĭt, -gāt′)
Able to exist or survive only in a particular environment or by assuming a particular role: an obligate parasite; an obligate anaerobe.
n. (-gĭt, -gāt′)
An obligate organism.

ob′li·ga·ble (-gə-bəl) adj.
ob′li·gate·ly adv.
ob′li·ga′tor n.

obligate

[ob′ligit, -gāt]
Etymology: L, obligare, to bind
characterized by the ability to survive only in a particular set of environmental conditions, such as an obligate parasite, which can survive only within the host organism. Compare facultative.

obligate

adjective Necessarily; without alternative; required.

obligate

adjective Necessarily; without alternative

ob·li·gate

(ob'li-găt)
Without an alternative system or pathway.
[L. ob-ligo, pp. -atus, to bind to]

obligate

Able to survive only in a particular environment. Used especially of certain parasites.

obligate

(of an organism) being able to live only in one set of conditions. For example, obligate parasites such as the tapeworm require a host for completion of the life cycle; obligate aerobes such as man require atmospheric oxygen for respiration. Compare FACULTATIVE.

obligate

necessary, essential.

obligate accumulators
obligate carrier
the subject is always available as a carrier of the infection.