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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 ?
Histologically, the lesions of soft tissue appeared as well-circumscribed masses with abundant collagenous matrix and low vascularity.
At this year's FIE, GELITA is focusing on two smart technological solutions based on collagenous proteins.
Histologic examination showed a moderately cellular lesion composed of fascicles of bland spindle cells embedded in a variably collagenous stroma (figure 2, A).
In nature, the soft collagenous core of the mussel's byssal threads is protected by a five-to-10 micrometer thick, hard coating, which is also extensible and thus, tough," Ahn relates.
The effect of maintained or repeated loading on the collagenous tissue during the time has an important role in the pathogenesis of musculoskeletal disorders (Sbenghe, 1981).
in 1986 as a benign breast disease characterized by a dense, collagenous proliferation of mammary stroma, forming inter-anastomosing capillary-like spaces lined by slender spindle cells (1).
The nodules are encircled by a variable lymphoplasmacytic infiltrate, spindle cells, and collagenous stroma.
In addition, several renal complications were reported, including six cases of Fanconi syndrome and nine cases of acute renal insufficiency, and there was one case of collagenous colitis.
Collabody is a unique recombinant protein engineering platform, which utilizes a short triplex-forming collagenous peptide, derived from human serum collagens to make multivalent protein binders.
A ganglion cyst is a benign mass with a collagenous fibrous capsule surrounding high-viscosity mucinous fluid.
Dr Klein's research involves studies of an integrated knowledge base concerning variation in human genetics and how it can lead to variation in our response to drugs, the stability of the collagen triple helix, and the relationship and prediction of lethal mutations for the genetic collagenous disease Osteogenesis imperfecta.
Corneal sequestrum is a disease characterized by collagenolysis and necrosis of collagenous stroma leading to formation of amber to black pigmentation in anterior stroma (Startup, 1988).