Definition: This word describes something that does not have a head or leader. It can refer to certain animals that lack a head or to groups or organizations that do not have a clear leader.

Example: The acephalous group struggled to make decisions without a leader.

Definition: Describing something that is piled up or arranged in closely packed groups or clusters.

Example: The acervate arrangement of the flowers created a stunning visual effect in the garden.

Definition: To pile or stack things together in a heap.

Example: The gardener decided to acervate the fallen leaves into a large pile.

Definition: Having the shape of a cup or a saucer.

Example: The acetabular cavity of the hip joint is crucial for proper movement.

Definition: A cup-shaped socket located at the base of the hipbone that holds the ball-shaped head of the thigh bone, allowing for movement at the hip joint.

Example: The acetabulum is crucial for the stability of the hip joint.

Definition: A type of chemical compound made by combining aldehydes with alcohol. These compounds can be colorless and are often used in products like cosmetics and as solvents.

Example: The chemist synthesized an acetal for use in the laboratory.

Definition: A clear, colorless liquid that can catch fire easily, used in making substances like vinegar, perfumes, and some medicines.

Example: Acetaldehyde is commonly used in the production of various chemicals and as a solvent.

Definition: A chemical compound that is an alternative form of acetamide, which is used in various chemical reactions and processes.

Example: The chemist discussed the properties of acetamid in the laboratory.

Definition: A white, crystalline substance made from acetic acid, often used as a solvent in various chemical processes and applications.

Example: Acetamide is often used in organic synthesis due to its properties as a solvent.

Definition: A chemical compound that is a derivative of acetanilide, often used in various chemical applications.

Example: Acetanilid was once commonly used to relieve pain and reduce fever.

Definition: A white solid substance that was once used in medicine to help with pain and fever, but is no longer commonly used because it can be harmful.

Example: Acetanilide was once a common ingredient in pain relief medications.