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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

thing go
a separate and self-contained entity

unit, building block go
a single undivided natural thing occurring in the composition of something else

molecule go
(physics and chemistry) the simplest structural unit of an element or compound

macromolecule, supermolecule go
any very large complex molecule

protein go
any of a large group of nitrogenous organic compounds that are essential constituents of living cells

simple protein go
a protein that yields only amino acids when hydrolyzed

scleroprotein, albuminoid
a simple protein found in horny and cartilaginous tissues and in the lens of the eye

noun.substance

5 Subcategories

collagen go
a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue
elastin go
a fibrous scleroprotein found in elastic tissues such as the walls of arteries
gelatin, gelatine go
a colorless water-soluble glutinous protein obtained from animal tissues such as bone and skin
chondrin go
a substance that resembles gelatin and is obtained by boiling cartilage in water
keratin, ceratin go
a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves