coarctation noun. [kǝʊɑ:k'teɪʃ(ǝ)n] LME.
[Latin coar(c)tatio(n-), from coar(c)tat- pa. ppl stem of coar(c)tare: see COARCT, -ATION.]
1. The action of compressing tightly; the state of being tightly compressed; spec. (Medicine) congenital narrowing of a short section of the aorta. LME.

2. Confinement or restriction as to limits. Now rare. E17.

[TahlilGaran] English Dictionary ▲