May 21, 2026 · The meaning of STARTLE is to move or jump suddenly (as in surprise or alarm). How to use startle in a sentence.

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STARTLE definition: 1. to do something unexpected that surprises and sometimes worries a person or animal: 2. to do…. Learn more.

STARTLE definition: to disturb or agitate suddenly as by surprise or alarm. See examples of startle used in a sentence.

A startle is a quick, sharp movement, like a little jump that happens when you’re surprised or suddenly scared. If you sneak up on your mom and say "Boo!" you’ll startle her and she might jump up in her …

To alarm, frighten, or surprise suddenly. See Synonyms at frighten. To become alarmed, frightened, or surprised. n. 1. A sudden, brief episode of fear. 2. A sudden, involuntary movement in response to …

Mar 16, 2026 · Babies startle easily, but it’s usually harmless. Learn what causes the reflex, when it fades, and signs that might warrant a chat with your pediatrician.

startle in British English (ˈstɑːtəl ) verb to be or cause to be surprised or frightened, esp so as to start involuntarily

Definition of startle verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The startle reflex is a brainstem reflectory reaction (reflex) that serves to protect vulnerable parts, such as the back of the neck (whole-body startle) and the eyes (eyeblink) and facilitates escape from …