By 1500 UTC, however, the circulation had become ill defined, prompting the NHC to declassify Bret as a tropical system about 375 mi (605 km) north of Bermuda.
Over the course of August 15, Cindy's cloud pattern remained disorganized due to unfavorable wind shear; its center became ill defined, with the strongest thunderstorms confined to the eastern portion of the cyclone.
As Val passed south of Naha, the system turned more westward blocked by the subtropical ridge and passed south of Taiwan, which caused its center to become ill defined.
In contrast, tumor recurrence manifests as a well-defined soft tissue mass that grows on serial imaging and becomes ill-defined as it becomes more infiltrative [19] (Figs. 19 and 20).
These singularities are boundaries ("sharp edges") of spacetime at which geometry becomes ill-defined, with the consequence that general relativity itself loses its predictive power.
But some solutions of Einstein's equations have "ragged edges"—regions known as spacetime singularities, where the paths of light and falling particles come to an abrupt end, and geometry becomes ill-defined.
The center of circulation became increasingly ill defined, with the majority of convection located well away from the center.
The philtrum becomes longer and ill defined, indirectly contributing to a thinner upper lip. 2 Furthermore, the dynamics of lip movement change with age.
In tick cells the morulae often become enlarged and ill defined [ 25].
Contrary to static ensembles, dynamic ensembles became popular thanks to their performance in the context of ill defined problems (small size datasets).
While the term "burnout" has become quite common in both research and practice, it has been ill defined historically.
