Definition 71.10.1. Let $S$ be a scheme. Let $X$ be an algebraic space over $S$. The *sheaf of meromorphic functions on $X$* is the sheaf *$\mathcal{K}_ X$* on $X_{\acute{e}tale}$ associated to the presheaf displayed above. A *meromorphic function* on $X$ is a global section of $\mathcal{K}_ X$.

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