obligate

Từ điển American Heritage Dictionary 4th

ob·li·gate (ŏbʹlĭ-gāt')tr.v. ob·li·gat·ed, ob·li·gat·ing, ob·li·gates
1. To bind, compel, or constrain by a social, legal, or moral tie. See Synonyms at force.
2. To cause to be grateful or indebted; oblige.
3. To commit (money, for example) in order to fulfill an obligation.adj. (-gĭt, -gāt')
1. Biology. Able to exist or survive only in a particular environment or by assuming a particular role:
an obligate parasite; an obligate anaerobe.
2. Absolutely indispensable; essential. [Latin obligāre, obligāt-. See oblige.] obʹli·ga·ble (-gə-bəl) adj.obʹli·gate·ly adv.obʹli·ga'tor n.

• Từ đồng nghĩa / Synonyms:
  oblige, bind, hold, compel