Extersion Ex*ter"sion, n. [L. extergere, extersum, to wipe out; ex out + tergere to wipe or rub off.] The act of wiping or rubbing out. [Obs.] [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • extersion — † exˈtersion Obs. 0 [as if ad. L. *extersiōn em, n. of action f. extergē̆re: see prec.] The action of rubbing or wiping off or out. 1656–81 in Blount Glossogr. in Bailey …   Useful english dictionary

  • 外延 — wàiyán [denotation; extersion] 概念所确指的对象的范围, 如 圆 这个概念的外延是指大大小小一切的圆 …   Advanced Chinese dictionary

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