Echinocyte (from the Greek word echinos, meaning 'hedgehog' or 'sea urchin'), in human biology and medicine, refers to a form of red blood cell that has an abnormal cell membrane characterized by many small, evenly spaced thorny projections.[1][2] A more common term for these cells is burr cells.
^Mentzer WC. Spiculated cells (echinocytes and acanthocytes) and target cells. UpToDate (release: 20.12- C21.4) [1]
^Hoffman, R; Benz, EJ; Silberstein, LE; Heslop, H; Weitz J; Anastasi, J. (2012). Hematology: Basic Principles and Practice (6th ed.). Elsevier. ISBN978-1-4377-2928-3.