Definition: A chemical used to kill weeds by stopping their ability to make food through photosynthesis.

Example: Farmers often use atrazine to control weed growth in their crops.

Definition: A medical condition where a normal body opening or passage is absent or closed, which can affect areas like the anus, intestine, or ear canal.

Example: The baby was diagnosed with atresia, requiring immediate medical attention to address the closure of the intestinal passage.

Definition: Related to an atrium, which is a central part of a structure, either in anatomy or architecture.

Example: The doctor explained that the atrial walls are important for heart function.

Definition: A space or chamber in the body, particularly one of the upper parts of the heart that collects blood, or a central area in a building that is often open to the sky and may have plants.

Example: The atrium of the heart plays a crucial role in circulating blood throughout the body.

Definition: Relating to a condition where body tissue or an organ wastes away or decreases in size due to lack of use or nourishment.

Example: The doctor explained that the atrophic muscles would need special exercises to regain strength.

Definition: Describing a part of the body that has become smaller or weaker due to lack of use or nourishment.

Example: After months of inactivity, his muscles had atrophied significantly.

Definition: To gradually lose strength, health, or size, often due to lack of use or nourishment.

Example: If you don't exercise regularly, your muscles may atrophy over time.

Definition: A condition where a body part, organ, or tissue decreases in size or becomes weaker due to disease, lack of use, or injury.

Example: After months of inactivity, the patient's muscles showed signs of atrophy.

Definition: To cause a part of the body or an organ to become weaker or smaller due to lack of use or nourishment.

Example: If you don't exercise regularly, your muscles may atrophy over time.

Definition: A chemical compound used in medicine, often derived from plants, that can affect the nervous system and is used to treat various conditions.

Example: The doctor administered atropin to help with the patient's symptoms.

Definition: A toxic substance derived from certain plants, used in medicine to widen the pupils of the eyes and to relieve muscle spasms.

Example: The doctor administered atropine to help with the patient's muscle spasms.

Definition: A condition that occurs in the body due to prolonged exposure to certain substances, particularly belladonna, which can affect the nervous system.

Example: The doctor explained that atropism can result from the long-term use of belladonna.