To bind, compel, or constrain by a social, legal, or moral tie. See Synonyms at force. (verb)
To cause to be grateful or indebted; to oblige. (verb)
To commit (money, for example) in order to fulfill an obligation. (verb)
Able to exist or survive only in a particular environment or by assuming a particular role: an obligate parasite; an obligate anaerobe. (adjective)
Absolutely indispensable; essential. (adjective)
Examples of word obligate
Because these probes remain obligate tetramers, they are not the best choice for labeling proteins.
Recovery Act deadline to "obligate" - or commit to specific projects - 100 percent of their highway Recovery funds.
Transportation Secretary Ray LaHood announced that every state and the District of Columbia met the March 2 Recovery Act deadline to "obligate" - or commit to specific projects - 100 percent of their highway Recovery funds.
The female feeds the tadpole special infertile decapsulated eggs pumilio are known as obligate egg-feeders, along with D. histrionicus and D. lehmanni, often assisted by the male, who will call from tad-containing axils to encourage the female to swing by and feed the kids.
Some prokaryotes cannot grow in the absence of oxygen for cellular respiration and are called obligate aerobes.