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1. Any of a class of extracellular proteins that are composed of three coiled polypeptide chains, form strong fibers, and are the main constituents of cartilage, bone, and other connective tissues in animals.
2. Material composed principally of collagen proteins. Collagen is converted into gelatin when boiled in water.

[Greek kolla, glue + -gen.]

col′la·gen′ic (-jĕn′ĭk), col·lag′e·nous (kə-lăj′ə-nəs) adj.
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Adj.1.collagenous - relating to or consisting of collagen
References in periodicals archive ?
But my doctor told me not to take it because I have Collagenous Colitis.
134-138) that these "features" are best interpreted as collagenous fibers present in the dermis of the skin, based largely on the thorough work and conclusions of T.
Tissue engineering is the study of growth of new connective tissues, or organs, from cells and a collagenous scaffold to produce a fully functional organ for implantation.
Histopathologic analysis revealed that the tumor was composed of closely packed, spindle-shaped to round cells, and scattered collagenous deposition (figure 3, A).
Boswellic acid's anti-inflammatory actions make it an incredibly important tool in the management of inflammatory bowel diseases such as ulcerative colitis, Crohn's disease, and collagenous colitis.
It is composed primarily of longitudinally arranged collagenous tissue and a few clastic fibers.
Solitary fibrous tumour is characterized by areas with the staghorn vascular pattern and dense collagenous stroma in contrast to hyalinized round vessels and wispy collagen of cellular angiofibroma.
Fibroblasts secrete a collagenous extracellular matrix providing support to the developing tissue.
Histologically, desmoid tumors consist of spindle-shaped cells arranged in broad bundles within an abundant collagenous matrix.
As Halozyme's first conditionally active biologic, HTI-501 is designed to degrade the collagenous fibrous components of the extracellular matrix only at the injection site by tightly controlling the extent and duration of enzyme activity once injected into the body.
Progressive mechanical loading is more likely to restore the strength and morphological characteristics of collagenous tissue.
Desmoid tumours are generally hyperintense to muscle on T2 weighted images, but as they mature with increasing collagenous component, the T2 signal decreases and approximates skeletal muscle.