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) compound, chemical compound ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)
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) 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) 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) 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) social relation (a relation between living organisms (especially between people))
S: (n) position, spatial relation (the spatial property of a place where or way in which something is situated) "the position of the hands on the clock"; "he specified the spatial relations of every piece of furniture on the stage"
S: (n) ownership (the relation of an owner to the thing possessed; possession with the right to transfer possession to others)
S: (n) relationship, human relationship (a relation between people; (`relationship' is often used where `relation' would serve, as in `the relationship between inflation and unemployment', but the preferred usage of `relationship' is for human relations or states of relatedness)) "the relationship between mothers and their children"
S: (n) function (a relation such that one thing is dependent on another) "height is a function of age"; "price is a function of supply and demand"
S: (n) association (a relation resulting from interaction or dependence) "flints were found in association with the prehistoric remains of the bear"; "the host is not always injured by association with a parasite"
S: (n) foundation (the basis on which something is grounded) "there is little foundation for his objections"
S: (n) connection, connexion, connectedness (a relation between things or events (as in the case of one causing the other or sharing features with it)) "there was a connection between eating that pickle and having that nightmare"
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) affinity, kinship (a close connection marked by community of interests or similarity in nature or character) "found a natural affinity with the immigrants"; "felt a deep kinship with the other students"; "anthropology's kinship with the humanities"
S: (n) affinity, phylogenetic relation ((biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts) "in anatomical structure prehistoric man shows close affinity with modern humans"
S: (n) control (a relation of constraint of one entity (thing or person or group) by another) "measures for the control of disease"; "they instituted controls over drinking on campus"
S: (n) change (a relational difference between states; especially between states before and after some event) "he attributed the change to their marriage"