Definition: Describing a structure that has a medulla, which is a central part or core, often found in biological contexts.

Example: The medullated fibers in the nervous system are essential for fast signal transmission.

Definition: A type of cancerous growth in the brain that usually occurs in children, specifically in the part of the brain that controls balance and coordination.

Example: The doctor diagnosed the child with medulloblastoma after reviewing the MRI results.

Definition: A type of jellyfish that belongs to the family Medusidae, known for its umbrella-shaped bell and tentacles.

Example: The medusan floated gracefully through the water, its tentacles trailing behind it.

Definition: A type of jellyfish or a shape that looks like a jellyfish.

Example: The medusoid floated gracefully in the water, its tentacles trailing behind it.

Definition: A medication used to treat and prevent malaria, especially when the disease is resistant to other treatments.

Example: The doctor prescribed mefloquine to help prevent malaria during their trip to Africa.

Definition: A unit of frequency equal to one million cycles per second, often used in measuring electromagnetic waves.

Example: The radio station broadcasts at a frequency of five megacycles.

Definition: A term used to describe one million deaths, often in the context of nuclear warfare.

Example: The nuclear explosion resulted in a megadeath, highlighting the devastating impact of such weapons.

Definition: A very large amount of a drug or vitamin taken at one time.

Example: The doctor recommended a megadose of vitamin C to help boost my immune system.

Definition: A unit of force equal to one million dynes, used in physics to measure large forces.

Example: The rocket's engines produced a thrust of several megadynes during launch.

Definition: A large female gamete, typically found in certain organisms, that is involved in sexual reproduction.

Example: In some species, the megagamete plays a crucial role in fertilization.