Meaning

The period of screw rotation during injection molding when the plastic can flow into the mold..

Definitions by Sense

1. The period of screw rotation during injection molding when the plastic can flow into the mold.
2. A hook-shapped attachment for an earring that sits behind the earlobe and tightens with a screw. Also, an earring that uses this type of attachment.
3. A mechanism for attaching a small item to clothing that operates by a post which goes through the cloth and a small backing plate that screws to the post. Also, the medal, tie pin, button, etc. that uses this type of attachment.
4. A type of case for a pocket watch where the mechanism is accessed by a removable back plate that screws onto the back of the case. Also, a watch that has such a case.
5. (snooker, pool, billiards) The effect of putting backspin on the cue ball.
6. (golf) A powerful shot that imparts a spin to the ball.
7. (ping-pong) A half-volley executed by holding the racket loosely and swinging it straight at the ball.
8. (architecture) A masonry abutment on an arch that is wedge-shaped in order to transmit the thrust downward.

Example Sentences

Two main phenomena have been emphasized: (a) The transient nature of plastication during periods of screw rotation ("screwback") in comparison with the similar process in continuous extrusion. (b) The significant amount of melting produced by thermal conduction from the barrel while the screw is not turning.

But in the open (screwback) position, the plastic must progress through a series of labyrinths which produces a more turbulent flow.

Screwback time is a limiting factor when the plastication rate of the machine is too small or if the cooling time is small, as is the case with thin-walled mouldings.

The clip was a variation of the screwback; today, many persons who cannot wear pierced earrings choose clips as an option.

The quality of these buttons and charms is best rolled gold and hard enameled in correct colors, the button having either a screwback or a jewelers' catchpin.

The medal screwpost is placed through the uniform and retained by a circular screwback plate.

The watch stolen from Dan Payton had been an Elgin, with a screwback military case.

There he was three into the bunker and bogey for the hole was four, and making up his mind to lay the ball dead, he took his niblick and executed a beautiful screwback shot which landed within a foot of the pin, rolled to the edge of the hole, and there stopped dead, doubtless owing to the eternally damned influence of the aforesaid cloven hoofprint.

Synonyms for screw back

Related Words

When Should You Use Screw back?

Use screw back when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.

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