outward flow

Ion channels are gateways within cells that tightly control the inward and outward flow of essential ions, such as potassium and calcium, and are thought to be critically linked to cancer malignancy and progression.

The outward flow is sometimes referred to as a reverse, or negative, storm surge.

Meanwhile, it said it has established five new border checkpoints to slow the outward flow of migrants and plans at least 27 new posts overall.

The CDC's the current recommendation regarding valves that regulate outward flow of air notwithstanding, the agency previously recognized the benefits to valves, stating, "An exhalation valve reduces excessive dampness and warmth in the mask from exhaled breath."

But the pandemic has triggered a large outward flow.