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(physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary; "the reaction occurs in the liquid phase of the system"
cause to happen, occur or exist; "This procedure produces a curious effect"; "The new law gave rise to many complaints"; "These chemicals produce a noxious vapor"; "the new President must bring about a change in the health care system"
ask (someone) to marry you; "he popped the question on Sunday night"; "she proposed marriage to the man she had known for only two months"; "The old bachelor finally declared himself to the young woman"