Definition of "spring-load" []

• The load which can be applied to a spring to compress, deflect, or extend it without setting it down solid or straining it, beyond its elastic resiliency; the normal weight on a spring. (noun)

The Century Dictionary (Public Domain)

• "The offspring of the queen would possess preexisting features—a “behavioral ground plan”—that could spring-load eusocial life."
• "'I think they spring-load these mothers!' she moaned before returning to the topic of the day."
• "When a tasty treat swims by, a nurse shark stretches its mouth way open to spring-load the jaw before rapidly snapping down on the small prey."