Definition: A term used to describe a lens that has been designed to eliminate both color distortion and spherical distortion, allowing for clearer and more accurate images.

Example: The apochromatic lens provided sharper images than the standard lens.

Definition: Relating to a type of reproduction where an organism develops without fertilization, often seen in certain plants.

Example: The apogamic process allows some plants to reproduce without the need for male gametes.

Definition: The process in botany where an embryo develops without fertilization, leading to the growth of a sporophyte from a gametophyte without the need for fertilization.

Example: In some plants, apogamy allows for the development of new sporophytes without the need for fertilization.

Definition: Relating to a type of reproduction in plants where seeds are formed without fertilization.

Example: Some plants can reproduce in an apomictic manner, allowing them to produce seeds without the need for pollination.

Definition: The outward curve at the top and bottom of a column where the shaft connects to the capital or base.

Example: The architect admired the elegant apophyge of the ancient column.

Definition: A natural growth or projection from an organ or part of an organism, often seen in anatomy or geology.

Example: The apophysis of the vertebra helps to support the spine.

Definition: This word describes something that is related to or consists of limbs or appendages, particularly in the context of anatomy.

Example: The appendicular skeleton includes the bones of the arms and legs.

Definition: A bulbous structure formed by certain parasitic fungi that helps them attach to and penetrate the surface of their host.

Example: The appressorium allows the fungus to effectively invade the plant tissue.

Definition: A close approach of two celestial objects, often referring to their alignment or interaction in space.

Example: The appulse of the planets created a stunning sight in the night sky.

Definition: Related to a curved or rounded part of a building, especially in architecture, often referring to the area where the altar is located.

Example: The church features an apsidal design that enhances its acoustics.