Definition of pre-operation in English:

pre-operation

noun ˌpriːɒpəˈreɪʃn

Psychology. In Piaget's theory: an activity characteristic of the preoperational stage of a child's cognitive development, being intuitive rather than logical in nature.

adjective ˌpriːɒpəˈreɪʃn

Occurring or existing before an operation; (Medicine) = "preoperative".

Origin

Mid 17th century (in an earlier sense). From pre- + operation. Compare post-classical Latin praeoperatio (act of) bringing about beforehand.

Definition of pre-operation in US English:

pre-operation

nounˌpriːɒpəˈreɪʃn

Psychology. In Piaget's theory: an activity characteristic of the preoperational stage of a child's cognitive development, being intuitive rather than logical in nature.

adjectiveˌpriːɒpəˈreɪʃn

Occurring or existing before an operation; (Medicine) = "preoperative".

Origin

Mid 17th century (in an earlier sense). From pre- + operation. Compare post-classical Latin praeoperatio (act of) bringing about beforehand.

单词	pre-operation
释义	Definition of pre-operation in English: pre-operation noun ˌpriːɒpəˈreɪʃn Psychology. In Piaget's theory: an activity characteristic of the preoperational stage of a child's cognitive development, being intuitive rather than logical in nature. adjective ˌpriːɒpəˈreɪʃn Occurring or existing before an operation; (Medicine) = "preoperative". Origin Mid 17th century (in an earlier sense). From pre- + operation. Compare post-classical Latin praeoperatio (act of) bringing about beforehand. Definition of pre-operation in US English: pre-operation nounˌpriːɒpəˈreɪʃn Psychology. In Piaget's theory: an activity characteristic of the preoperational stage of a child's cognitive development, being intuitive rather than logical in nature. adjectiveˌpriːɒpəˈreɪʃn Occurring or existing before an operation; (Medicine) = "preoperative". Origin Mid 17th century (in an earlier sense). From pre- + operation. Compare post-classical Latin praeoperatio (act of) bringing about beforehand.
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