Task-Oriented Training (TOT) is an proven stroke rehabilitation intervention with significant evidence-based research that supports its effectiveness. The absence of a clear definition has led to variability in research reporting and subsequent confusion with practical implementation. A consistent definition seeks to remedy this ambiguity to facilitate knowledge translation. The objective of this study was to determine a comprehensive definition of TOT that encapsulates previous definitions and descriptions in the literature. In order to derive this definition, a two stage scoping review process was conducted across four databases searching for articles on the use of TOT in adult stroke rehabilitation therapy. The analysis of this scoping review included 174 articles. Commonly found words used to define TOT included: repetitive, functional, task practice, task specific, task oriented, intensity, and client-centered. Other salient words that aligned with the principles of neuroplasticity and key components of TOT were meaningful, progressive, graded, variable, and feedback. Based on these findings, a comprehensive proposed definition is as follows: Task-oriented training is an effective stroke rehabilitation intervention that focuses on the use of client-centered, repetitive practice of activities that are of high intensity and meaningful to the client. In conclusion, although similar principles were described in the TOT literature, there was no consistent and comprehensive definition of TOT. This scoping review identified key concepts from TOT methodology, and discussion sections in rehabilitation literature to generate a proposed comprehensive definition of TOT to guide research and practice.