clearly defined or identified. medicine or remedy effective in treating particular disease.

any of distinct types of material of which animals or plants are made. Thin soft papers for blowing the nose, etc..

fossil reptile of Mesozoic era. Reptile that lived millions of years ago.

To move quickly when completing an action.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

individual's mental and moral qualities. write.

That is likely to happen or be true.

act or instance of erupting. Processes of a volcano shooting out hot rocks.

action of depicting something.

Lacking a written language and advanced technology. Self-taught artist; the art done in this style.

having resemblance in appearance, character, or quantity. person or thing similar to another.

Used to add new (often different) information.

intellectual and practical activity encompassing systematic study of structure and behaviour of physical and natural world.

Connected to; in association with. To demonstrate a logical relationship between.

having acquired much knowledge through study. To get knowledge or skills by study or experience.