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

ecchymosis \ec`chymo"sis\, n.; pl. ecchymoses. nl., fr. gr.
   ?, fr. ? to extravasate; 'ek out of + ? to pour. med.
   a livid or black and blue spot, produced by the extravasation
   or effusion of blood into the areolar tissue from a
   contusion.
   1913 webster
see also:
ecchymoses 

[2] : WordNet (r) 2.0

ecchymosis
     n 1: the purple or black-and-blue area resulting from a bruise
     2: the escape of blood from ruptured blood vessels into the
        surrounding tissue to form a purple or black-and-blue spot
        on the skin
     also: ecchymoses pl
see also:
ecchymoses 

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

ecchymosis, med. jur. blackness. it is an extravasation of blood by rupture 
of capillary vessels, and hence it follows contusion; but it may exist, as 
in cases of scurvy, and other morbid conditions, without the latter. ryan's 
med. jur. 172. 

Ecchymosis >> E Words
Ecchymosis, definition of term: Ecchymosis
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