In this streamlined recipe, the salmon is half cooked on the grill and then half-“cooked” by the acidity of lime juice.
1610s, from French acidité (26c.) or directly from Latin aciditatem (nominative aciditas), noun of quality from Latin acidus (see acid (adj.)).
acidity a·cid·i·ty (ə-sĭd'ĭ-tē)n. The state, quality, or degree of being acid.