Definitions of Scrum

(In the product & software development context.)

"Scrum is a framework for developing and sustaining complex products." -- Jeff Sutherland and Ken Schwaber, The Scrum Guide https://www.scrum.org/portals/0/documents/scrum%20guides/scrum_guide.pdf
"Scrum is a simple yet incredibly powerful set of principles and practices that help teams deliver products in short cycles, enabling fast feedback, continual improvement, and rapid adaptation to change." -- The Scrum Alliance, https://www.scrumalliance.org/
"Scrum is a “framework” for building products. It is quite simple, ..." -- Ron Jeffries, http://xprogramming.com/articles/what-is-scrum-and-why-does-it-matter
"Scrum is an iterative and incremental agile software development framework for managing product development." -- Wikipedia, https://en.wikipedia.org/wiki/Scrum_(software_development)
"Scrum is a simple way to organize product development, using Agile and lean principles." -- Michael Kelley Harris

Got a better definition? Sent it and I'll add it. scrumDef@sourcecell.com