This is the 9763rd most frequent Japanese word.
蘭学
Western studies or Dutch studies.
In this context, 蘭学 refers to the study of Western sciences and medicine introduced from Dutch sources during the Edo period in Japan.
彼は蘭学を学び、医術を習得した。
He studied Rangaku and mastered medical techniques.
Here, 蘭学 represents a category of academic disciplines centered on Western knowledge disseminated through Dutch interactions.
蘭学は江戸時代の学問の重要な一分野として知られている。
Rangaku is known as an important field of scholarship during the Edo period.
In this sentence, 蘭学 denotes knowledge contained in written works related to Western culture and science interpretations in Japan.