critical period: meaning, definition, pronunciation and examples

In strict terminology, a 'critical period' implies a more rigid, all-or-nothing timeframe after which development cannot occur. A 'sensitive period' suggests optimal learning that is harder, but not impossible, later. In practice, the terms are often used interchangeably.

Yes, but metaphorically. It refers to a crucial, time-limited phase for an action or decision (e.g., 'the critical period for product launch'). The core scientific meaning does not apply.

In linguistics, it's the theory that the ability to acquire language natively is constrained by a biological critical period, typically ending around puberty.

Use it as a countable noun phrase, typically with an article ('a' or 'the') and often followed by 'for' + noun/-ing form. Example: 'The first two years represent a critical period for brain development.'

A specific time window in development during which an organism is optimally receptive to certain types of experience and learning, after which such development is much more difficult or impossible.

Critical period is usually academic / technical / formal in register.

Critical period: in British English it is pronounced /ˈkrɪt.ɪ.kəl ˈpɪə.ri.əd/, and in American English it is pronounced /ˈkrɪt̬.ɪ.kəl ˈpɪr.i.əd/. Tap the audio buttons above to hear it.