The Collaborative International Dictionary of English v.0.48:
Hematocele \He*mat"o*cele\, n. [Hemato- + Gr. ? tumor: cf. F. h['e]matoc[`e]le.] (Med.) A tumor filled with blood. [1913 Webster]WordNet (r) 3.0 (2006):
hematocele n 1: swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis) [syn: hematocele, haematocele, hematocoele, haematocoele]