Coherentism: An epistemological theory holding that the justification for beliefs consists in the relations among the beliefs. A coherentist thus typically denies that there are any special propositions that are basic or foundational. Rather, the structure of beliefs is like a web in which some beliefs are more central than others but in which some beliefs give mutual support to others as part of a network. More radical forms of coherentism not only adopt a coherentist account of justification but also a coherentist account of truth, in which true propositions are those that would be part of an ideally coherent system of beliefs.1
1. C.Stephen Evans, Pocket Dictionary of Apologetics & Philosophy of Religion (Downers Grove, IL: InterVarsity Press, 2002), p. 24.