Yes, canola oil is a seed oil.
Canola oil is a seed oil in that it is refined from large quantities of rapeseed and is high in polyunsaturated fatty acids (PUFAs). It is also commonly referred to as "vegetable oil", and is a staple in much restaurant cooking, as well as a common ingredient in most packaged food products.
Many believe that canola oil is unhealthy because PUFAs do not withstand heat well, and the refining process is particularly harsh on canola oil, stripping it of many of its naturally occurring antioxidants.
Here is a video of canola oil being made in a factory: How It's Made - Canola Oil
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