Science, Tech, Math › Science Biology Prefixes and Suffixes: Erythr- or Erythro- Share Flipboard Email Print CDC / Janice Haney Carr Science Biology Basics Cell Biology Genetics Organisms Anatomy Physiology Botany Ecology Chemistry Physics Geology Astronomy Weather & Climate By Regina Bailey Biology Expert B.A., Biology, Emory University A.S., Nursing, Chattahoochee Technical College Regina Bailey is a board-certified registered nurse, science writer and educator. Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists." our editorial process Regina Bailey Updated February 02, 2019 Definition The prefix erythr- or erythro- means red or reddish. It is derived from the Greek word eruthros meaning red. Examples 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.