connective tissue

tissue which connects other tissues and organs (consists mainly of collagen, elastin and reticular fibers)

Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, muscle, and nervous tissue.) It is largely a category of exclusion rather than one with a precise definition, but all or most tissues in this category are similarly:Involved in structure and support.Derived from mesoderm, usually.Characterized largely by the traits of non-living tissue.
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Con·nec·tive tissue n. The supporting or framework tissue of the body, arising chiefly from the embryonic mesoderm and including collagenous, [more]Connective tissue - Community and Resources

Noun
1. tissue of mesodermal origin consisting of e.g. collagen fibroblasts and fatty cells; supports organs and fills spaces between them and forms tendons and ligaments
(hypernym) animal tissue
(hyponym) skin, tegument, cutis
(substance-meronym) collagen
(part-meronym) histiocyte

Connective tissue is a material consisting of fibers that form a framework that provides support structure for body tissues.