Definitions

1. verb

to narrow or make narrower, especially by removing or cutting away material from the sides or edges

“The engineer isthmiated the pipe to increase its flow rate.”

2. verb

to cut or remove something to make it narrower or to form an isthmus

“The river isthmiated the land over time, creating a narrow strip of dry earth.”

3. verb

to make something more constricted or restricted

“The disease isthmiated the patient’s airways, making it difficult to breathe.”

4. noun

a process or result of isthmiation

“The isthmiation of the pipe caused a significant reduction in pressure.”