knife-edge


Also found in: Thesaurus, Idioms, Encyclopedia, Wikipedia.

knife-edge

(nīf′ĕj′)
n.
1. A sharp cutting edge.
2. A sharp, narrow edge or border: "saying lines that teeter on the knife-edge between literature and lunacy" (Vincent Canby).
3. A wedge of metal used as a low-friction fulcrum for a balancing beam or lever.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.knife-edge - a narrow boundary; "he lived on a knife-edge between genius and insanity"
limit, bound, boundary - the greatest possible degree of something; "what he did was beyond the bounds of acceptable behavior"; "to the limit of his ability"
References in classic literature ?
It is the knife-edge moment 'twixt time and eternity.
From above came one thin knife-edge of sunshine, and fifteen feet over our heads one saw the tops of the reeds swaying against the deep blue sky.
At one place it ran along the crest of a ridge that was no more than a knife-edge. The trail wasn't three feet wide on the crest, and on either side the ridge fell away in precipices hundreds of feet deep.
Pratt has said the problems, which resulted in some A320neo aircraft being grounded and halted deliveries, are caused by an engineering change to the "knife-edge seal" in the high-pressure compressor near the rear of the engine.
ALBION'S encouraging form hangs on a "knife-edge" with the club two injuries away from dire straits.
With a week to go until a knife-edge vote on Britain's European Union future, the FT as expected came out in support of continued EU membership.
1 WATCH: The GoPro footage shows what it's like to walk along Crib Goch - the knife-edge ridge in Snowdonia.
"Mentally, I think we turned up and thought it was going to be a walkover, but it ended up being on a knife-edge."
A structured fully randomized field test was implemented with two factors: loading method (high speed blowing and conveyor fed) and bit type (carbide hammer bits and knife-edge bits).
One of its advantages over clip-on extensometers is that the Video Gauge avoids the problem of knife-edge slippage where the knife edges can potentially cut into a specimen and induce a failure point.
A CORONER yesterday made an impassioned plea to women to stop starving themselves as they are "living on a knife-edge".
Bookmakers offer 10-11 about each side qualifying, both managers are wary of sounding over-confident in pre-match press conferences and commentators are obliged to use the phrase: "It's on a knife-edge!" It's fair to say that tonight's Arsenal-Milan tie isn't balanced on a knife-edge.