Definition: In a way that is typical or characteristic of a prototype, which is an original model or example of something.

Example: The design was prototypically innovative, setting a standard for future products.

Definition: A type of compound that consists of one oxygen atom bonded to a single bivalent atom or two univalent atoms, typically not exhibiting strong basic or acidic properties.

Example: Protoxid compounds are often studied in chemistry for their unique properties.

Definition: A scientist who specializes in the study of tiny, single-celled organisms known as protozoans.

Example: The protozoologist conducted research on the behavior of various protozoans in their natural habitats.

Definition: The scientific study of tiny, single-celled organisms known as protozoans, which are a type of microorganism.

Example: She decided to specialize in protozoology because of her interest in microscopic life forms.

Definition: The act of extending or prolonging something in time or space.

Example: The protraction of the meeting caused many attendees to lose interest.

Definition: Able to be extended or pushed out from a surface or body.

Example: The animal has a protrusible tongue that can extend to catch insects.

Definition: A part or object that sticks out from a surface or structure.

Example: The protrusion on the wall made it difficult to move the furniture.

Definition: A theoretical basic substance thought to be the source of all chemical elements and subatomic particles.

Example: Scientists once believed that protyle was the fundamental building block of matter.

Definition: A type of mineral that is a red sulfide made of silver and arsenic, typically found in crystal form or as a mass, often associated with other minerals in silver deposits.

Example: The geologist discovered a beautiful specimen of proustite in the silver mine.

Definition: A person, device, or program that shows the truth of something through logical or mathematical reasoning.

Example: The prover successfully demonstrated the theorem using a computer program.

Definition: Not a valid English word.

Example: N/A