This is the 14182nd most frequent Russian word.
опытно
"Опытно" means "experientially" or "by experience."
Here, 'опытно' refers to the experimental nature of the work, showing a focus on practical, trial-based activities.
Он работает в этой лаборатории опытно уже много лет.
He has been working in this laboratory on an experimental basis for many years.
In this example, 'опытно' describes the process of development and testing which was carried out through experiments or trials.
Этот метод был разработан опытно и доказал свою эффективность.
This method was developed experimentally and has proved its effectiveness.
Here, 'опытно' suggests experimentation as a means to discover or refine the approach.