breechblock, breech closer

breach, breeches, ventouse, breech birth, contravention, violation, orifice, rupture, speculum, episiotomy, patent ductus arteriosus, inguinal canal, uterus, coarctation, ventricular septal defect, anticipatory breach, prolapse, amniotic cavity, curette, forceps, birth defect, hydronephrosis, malformation, atrial septal defect, anastomosis, fetal distress, dural, birthing, myelomeningocele, diaphragm, ramrod, malposition, brachial plexus, dehiscence, septal defect, fibroid tumor, umbilicus, cesarean, nipple, amniotic sac, gaps, dystocia, uterine, trocar, clubfeet, endotracheal tube, abort, amniotic fluid, vaginal birth, puerperal fever, curettage, subclavian artery, void, subclavian vein, chute, cesarean delivery, valve, caesarean, inferior vena cava, vagina, innominate, divot, tympanic membrane, pierce, cesarean section, suctioning, uterine cavity, vertebral artery, womb, bulla, pericardial sac, frenulum, surgical incision, microtia, abruption, pus, impingement, pessary, pneumothorax, foramen, superior vena cava, plexus, perineum, uterine artery, obstetricians, complication, umbilical hernia, congenital defect, ventricles, circumflex artery, pinhole, angulation, incompetent cervix, insertion, encephalocele, chest cavity, placenta previa, anus, deviation, lacuna, sternal, barrel, bolt, fist, grate, lid, axle, chain, chimney, cylinder, rack, spool, spout, turntable, bobbin, boiler, cage, dial, doors, globe, magnet, lever, muzzle, screwed, lock, threaded, bevelled, cam, crank, fulcrum, gear, locking, slotted, arm, guard, knurled, lip, machined, neck

bolt, breech-loading, breechblock, breechloader, breech closer, matchlock

cask

opening

rear of barrel, rear of tube