acanthocyte

noun

acan·​tho·​cyte ə-ˈkan(t)-thə-ˌsīt 

: an abnormal red blood cell having several unevenly spaced and variously shaped cytoplasmic projections with blunt tips

The presence of acanthocytes implies advanced liver disease and carries a worse prognosis.

—Bruce R. Bacon et al., Comprehensive Clinical Hepatology

called also spur cell