plural of geodesic dome

(obsolete) A wooden frame to confine a horse while the smith is setting his shoes. / (obsolete) A beam; a lay of joints; a traverse. / (Britain) A screen or partition between stable stalls.

plural of blood substitution

(mineralogy) A trigonal-hexagonal scalenohedral mineral containing hydrogen, iodine, magnesium, oxygen, potassium, sodium, and sulfur.