Definition: The condition of being open or unobstructed, often used in medical or biological contexts.

Example: The doctor checked the patency of the blood vessels during the examination.

Definition: The study of the biological processes and changes that occur in diseases.

Example: Researchers in pathobiology investigate how diseases affect the body at a cellular level.

Definition: A living organism, like a bacterium or virus, that can cause illness or disease in another living being.

Example: The doctor explained that the flu is caused by a virus, which is a type of pathogen.

Definition: The process by which a disease develops and progresses in the body.

Example: Researchers are studying the pathogenesis of the disease to find better treatments.

Definition: Relating to the development or cause of disease.

Example: The researchers studied the pathogenetic factors involved in the illness.

Definition: Able to cause illness or disease in a living organism.

Example: Some bacteria are pathogenic and can lead to serious health problems.

Definition: The ability of an organism to cause disease in a host.

Example: The pathogenicity of the virus was studied to understand how it affects human health.

Definition: Describing a sign or symptom that is specifically associated with a particular disease or condition.

Example: The doctor noted that the rash was pathognomonic for the disease.

Definition: A type of biography that highlights the negative aspects of a person's life, such as their failures, illnesses, and tragedies, often focusing on how these elements influenced their work and life.

Example: The author's latest book is a pathography that explores the struggles and failures of a famous artist.

Definition: Relating to or caused by a disease or medical condition.

Example: The doctor explained that the patient's symptoms were pathologic and required immediate attention.