1. Geology:
* Erratic boulders: Large rocks that have been transported a significant distance from their original location by glaciers. They are often found in areas where glaciers once existed and are different from the surrounding bedrock.
2. General Usage:
* Erratic behavior: This refers to actions or behavior that is unpredictable, inconsistent, or lacking a clear pattern. It can also mean something that is odd or unusual.
The meaning of "erratics" is determined by the context in which it is used.
For example:
* "The geologist studied the glacial erratics in the valley." (Here, "erratics" refers to the large rocks transported by glaciers.)
* "Her erratic behavior made it difficult to understand her." (Here, "erratic" refers to unpredictable behavior.)