The phrase "is defined to include" is correct and usable in written English.
You can use it when you are explaining what something includes or contains. For example, "This policy is defined to include all employees of the company."
For this review, which draws on and further develops concepts advanced in the literature (Pine et al. 2011; Ruiz-Mercado et al. 2011), IS adoption is defined to include both acquisition (stoves are purchased or installed without any reference to their later use) and initial adoption (use is assessed < 1 year from acquisition).
Investment (I) is defined to include any discrepancy between consumer goods produced and consumer goods sold.
The term "employer" is defined to include "a State or political subdivision of a State". 29 U.S.C. 630(b)(2).
From Bernardsville, on its western edge, to Chatham on its eastern side, the watershed is defined to include all areas that send their rainwater rolling toward the refuge.
The global state for simulation is defined to include at least a simulation clock to enable time dependent computation.
The definitions section of the Merger Agreement includes the phrase "Parent Group," which is defined to include Aladdin Solutions and its affiliates (i.e., Blackstone).
Welfare was defined to include public assistance and Supplemental Security Income payments to poor people who were elderly or disabled.
Workplaces are defined to include conferences and fieldwork at remote sites, where students and young researchers are often most vulnerable.
Alternative Transaction Proposals under the Agreement, however, are defined to include inquiries, as well as proposals or offers.
In this study, the detention rate of detention pond was defined to include both reduction and delay of peak flow.
