obligate
/ˈɑ.blɪ.ɡɪt/ adjective C2- Requiring a (specified) way of life, habitat, etc.
- Indispensable; essential; necessary; obligatory; mandatory; unavoidably invoked. · In addition to being the obligate food source for monarch caterpillars, milkweeds also provide abundant nectar for the adult butterflies.· In some languages such signaling is optional, whereas in others it is obligate.
Other matches
Learn obligate in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.