If you graph a linear function, you get a line. If you graph a quadratic function, you get something called a parabola. A parabola tends to look like a smile or a frown, depending on the function. Check out this tutorial and learn about parabolas!
Orange Door Meanings. Orange is a colour associated with Mercury, which is the swiftest of the planets. Indeed the planet as the fleet-footed Roman god is symbolic of for reception, communication, perception, commerce, movement, intelligence and flexibility. With these kind of qualities, it might be a good idea to paint your business door orange.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: door (noun). a swinging or sliding barrier that will close the entrance to a room or building or vehicle. he knocked on the door; he slammed the door as he left. doorway, door, room access, threshold (noun).the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close. he stuck his head in the doorway.rinceton's WordNet (0.00 / 0 votes) Rate this definition: door (noun). a swinging or sliding barrier that will close the entrance to a room or building or vehicle. he knocked on the door; he slammed the door as he left. doorway, door, room access, threshold (noun).