Definition: Having a clear, glass-like appearance or quality, often allowing light to pass through.

Example: The hyaline layer of the cell membrane is crucial for its function.

Definition: A substance that is clear or transparent, often used to describe materials that allow light to pass through.

Example: The hyaline cartilage in the joints helps reduce friction and provides support.

Definition: A type of clear, colorless opal that can appear glassy or slightly translucent.

Example: The jeweler showcased a beautiful piece made of hyalite, which sparkled in the light.

Definition: A small freshwater creature with a cylindrical body and tentacles, or a mythical monster with many heads that grows two new heads for each one that is cut off.

Example: In Greek mythology, Hercules fought the hydra, a monster with multiple heads.

Definition: A type of bush that produces large clusters of flowers, which can be white, pink, or blue, and is often found in gardens.

Example: The hydrangea in her garden bloomed beautifully this summer.

Definition: A device connected to a water supply that allows firefighters to access water quickly, usually found on streets.

Example: The firefighters quickly connected their hoses to the hydrant to put out the fire.

Definition: A type of small animal in a colony that has a mouth and tentacles, used for feeding.

Example: The hydranth extended its tentacles to catch small prey in the water.

Definition: A type of aquatic plant that grows underwater, often found in freshwater environments, with long, narrow leaves arranged in whorls and small flowers.

Example: The lake was filled with hydrilla, making it difficult for boats to navigate.

Definition: A scientist who studies living organisms in water, such as rivers, lakes, and oceans.

Example: The hydrobiologist conducted research on the effects of pollution on fish populations.

Definition: The study of living organisms in water environments, including their interactions and ecosystems.

Example: She is pursuing a degree in hydrobiology to understand aquatic life better.

Definition: Relating to or resembling a type of small aquatic animal that is part of the class Hydrozoa, often found in marine environments.

Example: The hydroid species displayed unique characteristics that fascinated marine biologists.

Definition: A type of small sea creature that lives in colonies and has a polyp form, which is the main stage of its life cycle, rather than a jellyfish form.

Example: The hydroid colony swayed gently in the ocean currents.