释义 |
DictionarySeereflexdefense reflex
de·fense re·flex1. Synonym(s): flexor reflex2. automatic reactions of an animal, for example, raising of hair or feathers, dilation of the pupils, or baring of claws, when alarmed. (1) a reaction of the autonomic nervous system to perceived threat; alarm reaction (2) withdrawal reactiondefense reflexRetraction or tension in response to an action or threatened action.See also: reflex |