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: A single-celled organism that can be either free-living or parasitic and is often found in water or soil.

Example: The scientist studied the behavior of the protozoon under a microscope.

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: Something that causes a delay or prolongs a situation over time.

Example: The protractive negotiations made it difficult to reach an agreement.

Definition: A tool used to measure and draw angles, typically shaped like a half-circle with markings for degrees.

Example: In math class, we used a protractor to measure the angles of the triangles.

Definition: To stick out or extend beyond a surface or boundary.

Example: The branches of the tree protrude over the fence.

Definition: To stick out or extend beyond a surface or boundary.

Example: The tree branches protrude over the fence.

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: Describing something that sticks out or extends beyond a surface, often in a noticeable or prominent way.

Example: The protrusive rocks made it difficult to walk along the path.

Definition: The quality of something that sticks out or extends beyond a surface.

Example: The protrusiveness of the rock made it difficult to walk on the path.