Sel

plural Sels

1. A diminutive of the female given name Selena.

plural SELs

1. abbreviationcountableinitialismuncountablegovernmentInitialism of senior enlisted leader.
2. abbreviationcountableinitialismuncountablecomputingInitialism of single-event latchup (a destructive internal short circuit produced by a particle of ionizing radiation striking a CMOS computer chip).
3. abbreviationinitialismuncountableeducationInitialism of Social–emotional learning.

   In a March interview conducted over email, Mr. Rufo stated that while social-emotional learning sounds “positive and uncontroversial” in theory, “in practice, SEL serves as a delivery mechanism for radical pedagogies such as critical race theory and gender deconstructionism.”

   2022 April 22, Dana Goldstein, Stephanie Saul, quoting Chris Rufo, “A Look Inside the Textbooks That Florida Rejected”, in The New York Times, →ISSN

4. abbreviationcountableinitialismbusinessInitialism of shelf edge label.