Final answer:
The term 'slide' in guitar techniques is a method of moving between two notes smoothly by sliding the finger or a slide along the string.
Step-by-step explanation:
In guitar techniques, the term slide refers to a method where the player moves their finger along the string to get from one fret to another without lifting the finger, producing a smooth transition in pitch. This can be done on both acoustic and electric guitars and is often used to express emotion or add a unique sound to the music.
The technique can be performed with either the fretting hand, where the finger maintains contact with the string, or with a slide, which is a tube worn on one of the fingers of the fretting hand.