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) 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) ylem ((cosmology) the original matter that (according to the big bang theory) existed before the formation of the chemical elements)
S: (n) dark matter ((cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force)
S: (n) antimatter (matter consisting of elementary particles that are the antiparticles of those making up normal substances)
S: (n) glop (any gummy shapeless matter; usually unpleasant)
S: (n) fluid (continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas)
S: (n) system ((physical chemistry) a sample of matter in which substances in different phases are in equilibrium) "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide"
S: (n) residue (matter that remains after something has been removed)
S: (n) solid (matter that is solid at room temperature and pressure)
S: (n) solute (the dissolved matter in a solution; the component of a solution that changes its state)
S: (n) emanation (something that is emitted or radiated (as a gas or an odor or a light, etc.))
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) 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"