Biology Prefixes and Suffixes: Erythr- or Erythro-

Erythrocytes (Red Blood Cells)

CDC / Janice Haney Carr


The prefix erythr- or erythro- means red or reddish. It is derived from the Greek word eruthros meaning red.


Erythralgia (erythr-algia) - Disorder of the skin characterized by pain and redness of affected tissues.

Erythremia (Erythr-emia) - Abnormal increase in red blood cell numbers in the blood.

Erythrism (Erythr-ism) - Condition characterized by redness of hair, fur or plummage.

Erythroblast (Erythro-blast) - Immature nucleus-containing cell found in bone marrow that forms erythrocytes (red blood cells).

Erythroblastoma (Erythro-blast-oma) - Tumor composed of cells that resemble red blood cell precursor cells known as megaloblasts.

Erythroblastopenia (Erythro-blasto-penia) - Deficiency in the numbers of erythroblasts in bone marrow.

Erythrocyte (Erythro-cyte) - Cell of the blood that contains hemoglobin and transports oxygen to cells. It is also known as a red blood cell.

Erythrocytolysis (Erythro-cyto-lysis) - Red blood cell dissolution or destruction that allows the hemoglobin contained within the cell to escape into its surrounding environment.

Erythroderma (Erythro-derma) - Condition characterized by abnormal redness of the skin that covers a widespread area of the body.

Erythrodontia (Erythro-dontia) - Discoloration of the teeth that causes them to have a reddish appearance.

Erythroid (Erythr-oid) - Having a reddish color or pertaining to red blood cells.

Erythron (Erythr-on) - Total mass of red blood cells in the blood and the tissues from which they are derived.

Erythropathy (Erythro-pathy) - Any type of disease that involves red blood cells.

Erythropenia (Erythro-penia) - Deficiency in the numbers of erythrocytes.

Erythrophagocytosis (Erythro-phago-cyt-osis) - Process involving the ingestion and destruction of red blood cells by a macrophage or other type of phagocyte.

Erythrophil (Erythro-phil) - Cells or tissues that are readily stained with red dyes.

Erythrophyll (Erythro-phyll) - Pigment that produces red coloration in leaves, flowers, fruit, and other forms of vegetation.

Erythropoiesis (Erythro-poiesis) - Process of red blood cell formation.

Erythropoietin (Erythro-poietin) - Hormone produced by the kidneys that stimulates bone marrow to produce red blood cells.

Erythropsin (Erythr-opsin) - Vision disorder in which objects appear to have a reddish tinge.

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Bailey, Regina. "Biology Prefixes and Suffixes: Erythr- or Erythro-." ThoughtCo, Jul. 29, 2021, Bailey, Regina. (2021, July 29). Biology Prefixes and Suffixes: Erythr- or Erythro-. Retrieved from Bailey, Regina. "Biology Prefixes and Suffixes: Erythr- or Erythro-." ThoughtCo. (accessed May 31, 2023).