- Computer pictures - Pictures - The art or the science of drawing; esp. of drawing
according to mathematical rules, as in perspective, projection, and the
like.
- Instrument for measuring angles - One who, or that which, protracts, or causes
protraction. - A mathematical instrument for laying down and measuring
angles on paper, used in drawing or in plotting. It is of various
forms, semicircular, rectangular, or circular. - An instrument formerly used in extracting foreign or
offensive matter from a wound. - A muscle which extends an organ or part; -- opposed to
retractor. - An adjustable pattern used by tailors.
- Drawing - Explanatory chart - Explanatory graphic shows aid affected weight - Explanatory sketch - In encyclopaedia, gramophone has a mechanical plan - Make clear - Mechanical plan
- Classroom fixture - It’s used by teachers - Once used in school classrooms - Teacher’s slate - Teaching aid - A broad board painted black, or any black surface on
which writing, drawing, or the working of mathematical problems can be
done with chalk or crayons. It is much used in schools.