упреждающий(о нападении и т.п. • A pre-emptive military strike on North Korea's nuclear weapons would almost certainly ignite a massive retaliation against South Korea)
право преимущественной покупки(a right to acquire certain property in preference to any other person.
It usually refers to property newly coming into existence; a right to
acquire existing property in preference to any other person is usually
referred to as a right of first refusal G.Viligura)
преимущественное право приобретения(The Agricultural Holdings (Scotland) Act 2003 introduced the rights of tenant farmers to register their right to buy the land they tenant in the ...The pre-emptive right to buy offers additional opportunities for farmers who have tended secure holdings for many ... Alexander Demidov)