strictura

Etymology
From, perfect passive participle of.

Noun

 * 1) A contraction, compression, stricture.
 * 2) Pressure, suffering, torment.
 * 3) A hardened mass of wrought iron, bar of iron, ore.
 * 4) * 29-19 , Virgil, Aeneid, 8.420
 * striduntque cauernis / stricturae Chalybum et fornacibus ignis anhelat
 * Chalybian ores hiss in the caverns, and from the furnace mouths puff the hot-panting fires