The meanings of English words

act of plagiarizing: the copying of another person's ideas, text,

or other creative work, and presenting it as one's own, especially without permission.
(uncountable) Text or other work resulting from this act.

one thing is dependent on another for its existence, value,

or significance.
(mathematics) A relation in which each element of the domain is associated with exactly one element of the codomain.
(computing) A routine that receives zero or more arguments and may return a result.
(biology) The physiological activity of an organ or body part.
(chemistry) The characteristic behavior of a chemical compound.
(anthropology) The role of a social practice in the continued existence of the group.

line touching a curve at a single point without crossing

it there.
(trigonometry) In a right triangle, the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle. Symbols: tan, tg

number representing the position of a point along a line,

arc, or similar one-dimensional figure.
Something that is equal to another thing.