| 释义 | 
		Definition of controlled vocabulary in English: controlled vocabularynoun 1Education a limited range of words used in teaching a person (now especially a child) to read at a particular level, with new items gradually being introduced as reading skills advance. 2(In information science) a prescribed set of terms which may be used in abstracting, indexing, etc., and which is recognized within that system as having a predetermined set of meanings. 
 Origin   1920s; earliest use found in Classical Weekly.    Definition of controlled vocabulary in US English: controlled vocabularynoun 1Education a limited range of words used in teaching a person (now especially a child) to read at a particular level, with new items gradually being introduced as reading skills advance. 2(In information science) a prescribed set of terms which may be used in abstracting, indexing, etc., and which is recognized within that system as having a predetermined set of meanings. 
 Origin   1920s; earliest use found in Classical Weekly.     |