1 a [noncount] : the inner, juicy part of a fruit or vegetable
▪ The fruit has sweet, juicy pulp and hard, black seeds. ▪ the pulp of an orange
b [noncount] : the substance that is left after the liquid has been squeezed from a fruit or vegetable
▪ I like to strain the pulp out of my orange juice.
c : a soft, wet substance that is made by crushing something [noncount] ▪ The grain was mashed into pulp. [singular] ▪ mashed to a pulp 2 [noncount] : a soft material that is made mostly from wood and is used in making paper
▪ The boxes will be turned back into pulp and be made into newspapers. ▪ a pulp mill ▪ This paper is made from inexpensive wood pulp. 3 [count] US : a magazine, book, etc., that is cheaply made and that deals with sex, drugs, violence, etc., in a shocking way
▪ He made a little extra money by writing stories for a science fiction pulp. — often used before another noun ▪ a pulp magazine ▪ pulp fiction 4 [count, noncount] technical : the soft tissue that is inside a tooth