Definition: A device or mechanism that stops or slows down something, often used in engineering or safety applications.

Example: The arrestor was installed to prevent the vehicle from rolling down the hill.

Definition: Describing a type of plant that does not have a true root, often found in parasitic species.

Example: The arrhizal plant relies on its host for nutrients since it lacks a true root system.

Definition: A condition where the heartbeat is irregular, either in its rhythm or strength.

Example: The doctor diagnosed her with arrhythmia after she reported feeling her heart racing.

Definition: Not having a regular rhythm or pattern; irregular in movement or sound.

Example: The musician's arrhythmic playing made the song feel chaotic.

Definition: A pointed tip of an arrow, often made of stone or metal, that is designed to pierce targets.

Example: The hunter carefully attached a new arrowhead to his arrow before going out to hunt.

Definition: A chemical compound that is a salt or ester derived from arsenic acid, often used in various industrial applications.

Example: The laboratory tested the arsenate for its potential environmental impact.

Definition: Relating to or containing a chemical element that is a toxic metalloid, often used in pesticides and semiconductors.

Example: The arsenic compound was used in the experiment to test its effects on plant growth.

Definition: A toxic metallic element that can exist in different forms, commonly used in pesticides and some alloys. It is known for its harmful effects on health.

Example: The use of arsenic in agriculture has raised concerns about its impact on the environment and human health.

Definition: Relating to or containing a chemical element called arsenic, which is often toxic.

Example: The researchers studied the effects of arsenical compounds on human health.

Definition: A substance or medication that contains arsenic, often used in medical treatments or as a poison.

Example: The doctor prescribed an arsenical to treat the patient's condition.

Definition: A chemical compound that contains arsenic combined with a more positively charged element, often a metal.

Example: The researchers synthesized a new arsenide for their experiments.

Definition: Relating to or containing arsenic, particularly in a form where it has a valence of three.

Example: The chemist studied the properties of arsenious compounds in the laboratory.