Condities

Condities is the plural form of the Dutch noun conditie, meaning a state, prerequisite, or constraint that must be met for something to be true, possible, or valid. The term is used across disciplines to denote conditions that shape outcomes or define validity. In logic and mathematics, a condition is a constraint on variables or a premise that determines when a statement holds. For example, the condition x > 0 restricts the domain of a problem, and convergence conditions specify when a sequence or series converges. In programming, conditions are expressed as predicates in control-flow statements such as if and while, guiding which code executes next.

In science and engineering, conditions describe the environment or process requirements that influence results or device performance. Common examples include temperature, pressure, humidity, or reaction time. In experimental design, conditions are controlled to isolate effects and reduce variability. In engineering practice, operating conditions define the intended use and safety margins of systems. In law and contract practice, conditions or terms stipulate prerequisites, duties, or eligibility, and conditional clauses determine when obligations become active.

Etymology: the word derives from Latin conditio, meaning a settling, arrangement, or stipulation, and entered Dutch via Old French and Middle English. The plural condities is used to reference multiple such prerequisites or constraints across contexts.

See also: constraint, prerequisite, assumption, condition.