Searching vocabulary in batch processes, in online dictionaries.

How to automatically search definitions for a bunch of words in any online English dictionary?
Is there any dictionary online in which you upload a list of words and as the output you get one definition for each one of the words? To do this massively, instead of having to search one by one.
If anyone suggests ways to deal with unknown vocabulary from books, strategies for searching definitions e

Searching vocabulary in batch processes, in online dictionaries.