opening (part of speech: noun)
- The dependent orifice at the sole should be kept open for as long as possible, being occasionally trimmed round with the drawing- knife, and scooped out with a sharp- edged director. - "Diseases of the Horse's Foot", Harry Caulton Reeks.
- To play this game a little orifice is made in the ground and a skin put in it; often it is also played on a robe. - "Indian Games", Andrew McFarland Davis.
- With her two hind- legs stuck into the tube to obtain a purchase and the six others spread around the orifice, the better to perceive on every side the quiver which gives the signal of a capture, the Segestria waits motionless, at the entrance of her funnel, for an insect to become entangled in the snare. - "More Hunting Wasps", J. Henri Fabre.