an order of magnitude(больше, меньше; greater, larger, smaller; In the infrared, extinction by dust is an order of magnitude smaller than in the visible portion of the spectrum. I. Havkin)
...orders of magnitudes greater, larger, smaller(The recognition time or the nucleotides by the polymerase is two orders of magnitude longer than in RNA synthesis (Пример взят из словаря М. Циммермана) I. Havkin)
