intervein

inter- +‎ vein

intervein (not comparable)

1. Between veins.
   • 1982, John Feltwell, Large white butterfly

     Intervein areas of young leaves had significantly greater water content than similar areas in old leaves.

• intervenal
• intervenous

intervein (third-person singular simple present interveins, present participle interveining, simple past and past participle interveined)

1. (transitive) To form veins mutually with.
   • William Wordsworth

     With this blue or grey colour is frequently intermixed a red tinge, proceeding from the iron that interveins the stone, and impregnates the soil.