A function, also called portamento, in which the pitch slides smoothly from one note to the next instead of jumping over the intervening pitches
translation; the transformation of an image by a distance and a direction The square on the left is the orignal square, called the preimage The image to its right is formed by moving the preimage in the direction of the arrow The total distance which the image is moved is equal to the length of the arrow Note that the arrow is there for demonstrative purposes only; it is not part of the preimage
the act of moving smoothly along a surface while remaining in contact with it; "his slide didn't stop until the bottom of the hill"; "the children lined up for a coast down the snowy slope"