connective

The definition of connective is something that forms a link.

(adjective)

Tissues in your body that join one joint to another are an example of something that would be described as connective tissue.
Introductory notes between chapters in a book that explain how the two different sections relate to each other are an example of connective information.

See connective in Webster's New World College Dictionary

adjective

connecting or serving to connect

noun

something that connects, esp. a word that connects phrases, clauses, or other words, as a conjunction or relative pronoun
Bot. an anther's lobe-connecting tissue that splits open, allowing the pollen to escape

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See connective in American Heritage Dictionary 4

adjective

Serving or tending to connect.

noun

One that connects.
Grammar A word, such as a conjunction, that connects words, phrases, clauses, and sentences.
Botany The portion of a stamen that connects the halves of an anther.

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