Exam: GRE (Verbal)

Definition: A state where a person feels unable to help themselves or take action, often leading to feelings of powerlessness.

Example: After losing her job, she felt a deep sense of helplessness about her future.

Definition: A device used to count the number of blood cells in a specific volume of blood.

Example: The researcher used a hemacytometer to determine the concentration of red blood cells in the sample.

Definition: A substance that causes red blood cells to clump together, often found in antibodies or certain viruses.

Example: The hemagglutinin in the virus helps it to attach to and infect host cells.

Definition: A non-cancerous growth on the skin made up of a mass of blood vessels, often appearing as a raised, reddish or purplish area.

Example: The doctor diagnosed the child with a hemangioma on her forehead.

Definition: This word describes something that is related to blood or has characteristics similar to blood.

Example: The doctor explained that the hematic properties of the substance were crucial for the treatment.

Definition: A substance that helps to increase the amount of blood or improve its quality.

Example: Iron is often used as a hematic to treat anemia.

Definition: A field of study in medicine and physiology that focuses on blood and its components, including its functions and diseases.

Example: The doctor specialized in hematics to better understand blood disorders.

Definition: A dark compound formed from the breakdown of hemoglobin, containing iron and nitrogen, often found in blood.

Example: Hematin is used in various biochemical studies to understand blood composition.

Definition: Describing something that helps to increase the level of hemoglobin in the blood.

Example: Iron supplements are often considered hematinic because they help boost hemoglobin levels.

Definition: A substance that helps to increase the level of hemoglobin in the blood, which can improve the body's ability to carry oxygen.

Example: The doctor prescribed a hematinic to help treat the patient's anemia.

Definition: Relating to or resembling a type of iron oxide mineral known as hematite, which is often reddish in color.

Example: The artist used hematitic pigments to create a rich, earthy tone in the painting.

Definition: The percentage of red blood cells in a sample of blood after it has been separated from the liquid part by spinning it in a machine.

Example: The doctor ordered a hematocrit test to check the patient's red blood cell levels.