1. 
   dacryocystostenosis
   (dak″re-o-sis″to-stә-no´sis) narrowing of the lacrimal sac.
   Found op http://www.encyclo.co.uk/local/21001
   
   
2. 
   dacryocystostenosis
   dacryocystostenosis 1. The narrowing of the lacrimal sac. 2. Dacryostenosis at the level of the lacrimal sac or nasolacrimal duct.
   Found op http://www.wordinfo.info/words/index/info/view_unit/613/3
   
   

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