optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. slide or cause to slide into itself, so that it becomes smaller.

To injure a muscle, leg etc. by using it too much.

To try to achieve or get something over time.

Not made by humans; without human intervention. naturally. person having innate talent.

substance that increases rate of chemical reaction without itself undergoing any permanent chemical change. Substance causing a chemical reaction to speed up.

information and skills acquired through experience and education.

of great size or extent.

create or design.

Study of the physical world, based on facts.

having great power or strength. very.

quality or state of being correct or precise.

Really badly or displeasingly.

pair of lenses set in frame resting on nose and ears, used to correct or assist defective eyesight. Materials used for making windows.

production of books, newspapers, or other printed material. To write individual letters by hand in capitals.

concerned with actual doing or use of something.