Definition: A type of mineral that is mainly made of iron and niobium, often found in black or red-brown colors, and is the main source of niobium.

Example: Columbite is an important mineral used in the production of niobium for various industrial applications.

Definition: A small column or pillar, often used in biological contexts to refer to a structure that supports or connects parts of an organism.

Example: The columel in the plant's structure helps support the flowers above it.

Definition: A small column-like structure found in various plants and animals, often serving as a central support or axis for development or anatomy.

Example: The columella in the snail's shell helps to maintain its shape and structure.

Definition: Relating to a small column-like structure, often found in biological contexts.

Example: The columellar muscle plays a crucial role in the movement of certain mollusks.

Definition: A vertical structure or feature that can serve various purposes, such as supporting a building, organizing information in a table, or appearing regularly in a publication like a newspaper.

Example: The newspaper features a weekly column on health and wellness.

Definition: A part or section of the stem of certain marine animals, specifically crinoids, which are related to starfish and sea urchins.

Example: The columnal structure of the crinoid helps it to maintain stability in the water.

Definition: Describing something that is built with or shaped like columns, often tall and narrow.

Example: The architect designed a columnar building that stood out in the skyline.

Definition: One of two large circles on the surface of a sphere that cross at the poles and either the equinoxes or solstices, used in astronomy to help locate celestial bodies.

Example: The colure is important for understanding the positions of stars during different seasons.

Definition: A state of deep unconsciousness where a person cannot respond to their surroundings, often due to injury or illness.

Example: After the accident, he was in a coma for several weeks.

Definition: Having tufts of hair or fibers, especially on the top of a plant or seed.

Example: The comate seeds of the dandelion are easily carried by the wind.

Definition: A companion or friend, often used to refer to someone who shares a close bond with another person.

Example: He considered her his comate, always by his side through thick and thin.