orifice


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Related to orifice: Orifice plate, Back Orifice

orifice

[′ȯr·ə·fəs]
(electromagnetism)
Opening or window in a side or end wall of a waveguide or cavity resonator through which energy is transmitted.
(science and technology)
An aperture or hole.

orifice

orifice
A mouth, aperture, opening, perforation, passage, or hole. The size of an orifice normally is fixed.
References in classic literature ?
But as soon as two drops of blood have thus passed, one into each of the cavities, these drops which cannot but be very large, because the orifices through which they pass are wide, and the vessels from which they come full of blood, are immediately rarefied, and dilated by the heat they meet with.
Picture to yourselves," said I, "what this crater must have been when filled with boiling lava, and when the level of the incandescent liquid rose to the orifice of the mountain, as though melted on the top of a hot plate.
At this moment of anguish, he noticed, a little lower down than the balustrade whence he was crushing the thieves, two long stone gutters which discharged immediately over the great door; the internal orifice of these gutters terminated on the pavement of the platform.
Jav was shrieking still, and clawing at the royal couch that had already commenced to slide toward the centre of the room, where both Thuvia and Carthoris suddenly noted a small orifice which grew in diameter as the floor assumed more closely a funnel-like contour.
Daylight was filtering into the well from the orifice far above his head.
The nose was but a gaping orifice above a deformed and twisted mouth.
It became necessary to employ very powerful pumps and compressed-air engines to drain it off, so as to close up the orifice from whence it issued; just as one stops a leak on board ship.
The three travelers approached the orifice of the enormous cast-iron tube, and a crane let them down to the conical top of the projectile.
The proportional width of the gape of mouth, the proportional length of the eyelids, of the orifice of the nostrils, of the tongue (not always in strict correlation with the length of beak), the size of the crop and of the upper part of the oesophagus; the development and abortion of the oil-gland; the number of the primary wing and caudal feathers; the relative length of wing and tail to each other and to the body; the relative length of leg and of the feet; the number of scutellae on the toes, the development of skin between the toes, are all points of structure which are variable.
To prevent which, I presently made a large orifice in the vein of the left arm, whence I drew twenty ounces of blood; which I expected to have found extremely sizy and glutinous, or indeed coagulated, as it is in pleuretic complaints; but, to my surprize, it appeared rosy and florid, and its consistency differed little from the blood of those in perfect health.
I noticed that through the first circular orifice Raffles thrust a forefinger; then, as the circle became an ever-lengthening oval, he got his hand through up to the thumb; and I heard him swear softly to himself.
With a sound as of a hundred scoured saucepans, the orifice of a ventilator spat upon his shoulder a sudden gush of salt water, and he volleyed a stream of curses upon all things on earth including his own soul, ripping and raving, and all the time attending to his business.