A division or branch of any subject or sphere of knowledge.
| 单词 | θ123766 | 
| 释义 | the mind > mental capacity > perception or cognition > faculty of ideation > topic, subject-matter > affair, business, concern > 			[noun]		 > field of interest > division of (3)		 province1690 A division or branch of any subject or sphere of knowledge. subfield1894 A secondary or subordinate field or area of study, research, etc. subdiscipline1912 | 
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