Definition: A condition where a person has an unusual sensitivity or fear of light, often causing discomfort or pain in bright environments.

Example: People with photophobia may need to wear sunglasses even indoors to avoid discomfort from bright lights.

Definition: Describing something that avoids light or is sensitive to light.

Example: Some plants are photophobic and thrive in dark environments.

Definition: A type of treatment that uses light to help heal certain health problems, especially skin issues.

Example: The doctor recommended phototherapy to treat her skin condition.

Definition: Causing the skin to become more sensitive to light, especially sunlight, which can lead to damage like sunburn or blisters.

Example: Some medications can be phototoxic, making your skin more vulnerable to sunburn.

Definition: A harmful reaction that occurs when the skin or body is exposed to light, particularly sunlight, often resulting in skin damage or other negative effects.

Example: Some medications can cause phototoxicity, leading to severe sunburns even with minimal sun exposure.

Definition: Relating to the diaphragm, which is a muscle that helps with breathing, or sometimes referring to the mind.

Example: The phrenic nerve plays a crucial role in controlling the diaphragm during breathing.

Definition: A person who studies the shape and size of the skull to determine character and mental abilities, based on the now-discredited practice of phrenology.

Example: The phrenologist examined the skull to provide insights into the person's personality traits.

Definition: A type of chemical compound that is derived from phthalic acid, often used to make plastics more flexible and durable.

Example: Phthalates are commonly found in many household products, including toys and food packaging.

Definition: Relating to or affected by a wasting disease, especially tuberculosis.

Example: The phthisical condition of the patient required immediate medical attention.

Definition: Relating to the scientific study of algae.

Example: The phycological research revealed new species of algae in the ocean.