[1] : The Collaborative International Dictionary of English v.0.48

quadrans \quad"rans\, n.; pl. quadrantes. l.
   1. rom. antiq. a fourth part of the coin called an as. see
      3d as, 2.
      1913 webster

   2. the fourth of a penny; a farthing. see cur.
      1913 webster
see also:
quadrantes cur 

[2] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

quadrans, civil law. the fourth part of the whole. hence the heir 
exquadrante; that is to say, the fourth-part of the whole. 

Quadrans >> Q Words
Quadrans, definition of term: Quadrans
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