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oliguria vs. anuria

[ol-i-gyoor-ee-uh] / ˌɒl ɪˈgyʊər i ə /
Also oliguresis

noun

Pathology.
  1. scantiness of urine due to diminished secretion.

[uh-noor-ee-uh, uh-nyoor-, an-yoor-] / əˈnʊər i ə, əˈnyʊər-, ænˈyʊər- /

noun

Medicine/Medical.
  1. the absence or suppression of urine.