Definition: A type of antibiotic made from a bacterium found in soil, which is an important part of another antibiotic called tyrothricin.

Example: Tyrocidin is used in some medical treatments to fight bacterial infections.

Definition: A type of antibiotic made from a specific microorganism found in soil, which is used to treat infections.

Example: Tyrocidine is effective against certain bacterial infections.

Definition: A type of enzyme found in plants and animals that helps produce melanin and other pigments by causing a chemical reaction with tyrosine.

Example: Tyrosinase is essential for the darkening of fruits and vegetables when they are cut and exposed to air.

Definition: Relating to the study of unidentified flying objects (UFOs) and the phenomena associated with them.

Example: Many scientists are skeptical about ufological claims, but some find the subject fascinating.

Definition: The study of objects in the sky that cannot be identified, often related to extraterrestrial life.

Example: Many researchers dedicate their careers to ufology, exploring the mysteries of unidentified flying objects.

Definition: A soft, white mineral made of sodium, calcium, and boron, often found in loose, fibrous forms.

Example: Ulexite is sometimes called 'TV rock' because it can transmit images through its fibers.

Definition: Referring to a type of igneous rock that has a very low silica content and is rich in minerals like iron and magnesium.

Example: The geologist studied the ultrabasic rock samples to understand their mineral composition.

Definition: A machine that spins very fast to separate small particles from liquids or to separate different substances based on their size and weight.

Example: The scientist used an ultracentrifuge to separate the proteins from the solution.

Definition: To subject something to a machine that spins at very high speeds to separate substances based on their density.

Example: The scientist decided to ultracentrifuge the samples to isolate the proteins.

Definition: Very low in temperature, often close to absolute zero, where unusual physical properties can occur.

Example: Scientists are studying ultracold atoms to understand quantum mechanics better.

Definition: Very thick or compact, having a high amount of mass in a small space.

Example: The ultradense material was used in the construction of the spacecraft.