Bean
From Mugshot Developer Wiki
Originally a Java Bean was a Java object that followed certain conventions and could thus be manipulated in a UI builder. See for example this Wikipedia definition.
It seems the term "bean" is now used for any kind of "special" Java object, e.g. the EJB3 specification defines several kinds of "beans."
The Mugshot server also uses the term bean in the "dh:bean" jsp tag, see the JSP style guide for more. dh:bean expects an object with the usual bean getter/setter conventions, and will inject certain annotated fields of the object.
See also POJO if you want to learn as many synonyms for "Object" as possible.

