Noun

• S: (n) adenosine deaminase, ADA (an enzyme found in mammals that can catalyze the deamination of adenosine into inosine and ammonia) "ADA deficiency can lead to one form of severe combined immunodeficiency disease"; "the gene encoding ADA was one of the earlier human genes to be isolated and cloned for study"
• direct hypernym / inherited hypernym / sister term
• S: (n) enzyme (any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions)
• S: (n) protein (any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes) "a diet high in protein"
• S: (n) macromolecule, supermolecule (any very large complex molecule; found only in plants and animals)
• S: (n) molecule ((physics and chemistry) the simplest structural unit of an element or compound)
• S: (n) unit, building block (a single undivided natural thing occurring in the composition of something else) "units of nucleic acids"
• S: (n) thing (a separate and self-contained entity)
• S: (n) physical entity (an entity that has physical existence)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• S: (n) organic compound (any compound of carbon and another element or a radical)
• S: (n) compound, chemical compound ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)
• S: (n) chemical, chemical substance (material produced by or used in a reaction involving changes in atoms or molecules)
• S: (n) material, stuff (the tangible substance that goes into the makeup of a physical object) "coal is a hard black material"; "wheat is the stuff they use to make bread"
• S: (n) substance (the real physical matter of which a person or thing consists) "DNA is the substance of our genes"
• S: (n) matter (that which has mass and occupies space) "physicists study both the nature of matter and the forces which govern it"
• S: (n) physical entity (an entity that has physical existence)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• S: (n) part, portion, component part, component, constituent (something determined in relation to something that includes it) "he wanted to feel a part of something bigger than himself"; "I read a portion of the manuscript"; "the smaller component is hard to reach"; "the animal constituent of plankton"
• S: (n) relation (an abstraction belonging to or characteristic of two entities or parts together)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• S: (n) catalyst, accelerator ((chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected)
• S: (n) activator ((biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription)
• S: (n) substance (the real physical matter of which a person or thing consists) "DNA is the substance of our genes"
• S: (n) matter (that which has mass and occupies space) "physicists study both the nature of matter and the forces which govern it"
• S: (n) physical entity (an entity that has physical existence)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• S: (n) part, portion, component part, component, constituent (something determined in relation to something that includes it) "he wanted to feel a part of something bigger than himself"; "I read a portion of the manuscript"; "the smaller component is hard to reach"; "the animal constituent of plankton"
• S: (n) relation (an abstraction belonging to or characteristic of two entities or parts together)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))