The phrase "abrupt sign" is correct and usable in written English.
It can be used to describe a sign that is sudden or unexpected in nature, often conveying a sense of urgency or surprise.
Example: "As we drove through the forest, we were startled by an abrupt sign warning us of falling rocks ahead."
Alternatives: "sudden sign" or "unexpected sign".
His abrupt refusal to sign a new contract and return home to Munich is yet to be fully explained.
One modest stand brought us to an abrupt stop with a sign for Holy Schmitt's fresh horseradish mustard, a bracing condiment that has become a household favorite.
The nodule clearly shows a bronchial interruption sign with abrupt cut-off of the bronchus running towards the nodule.
Therefore, there is a turning point, i.e., as the strain increases, there is an abrupt reversal in the sign of dE g /d ε, making the curves to display a V shape.
But Dr. Blanchon maintains that the work will hold up, saying the signs of abrupt change are etched in the rock for everyone to examine.
The most frequently observed signs were abrupt rise of body temperature 105-106°F 105-106°Fsthatfor 3 to 5 days.
Discontinuing a regulative treatment (eg, hemodialysis) does not generally result in an abrupt interruption of vital signs but, instead, causes a gradual lethal metabolic disorder.
Much attention is being given to monitoring in terms of methods for detecting early warning signs of abrupt regime changes (e.g., Karunanithi et al. 2008; Biggs 2009; Scheffer et al. 2009, 2012).
For patients who are totally dependent on a medical device for VS or CS, rapid cessation of vital signs and abrupt termination of life will occur if the operation of the medical device is interrupted.
In the case of the real book graphs, the size of the greatest component grows smoothly with the average degree, showing no sign of any abrupt transition, suggesting that the connectivity in book graphs is not driven by any threshold mechanism driven by the average node connectivity.
