The Cambridge Dictionary in his English version has two meanings for the word Victorian. The first one defines it as “belonging to, made in, or living in the time when Queen Victoria was Queen of Great Britain and Ireland (1837–1901).” For example, A Victorian house. The later one defines it as “Victorian ideas, beliefs, etc. are ones considered to be typical of the time when Queen Victoria was queen, such as a belief in strict moral and religious rules and the importance of family life.”
Referring to the literary period, the Victorian era was a period of time in England when individuals didn’t want to be involved in scandals or disreputable topics and to do so, they tried to follow a pattern of high morality and values. In the text, “The Strange Case of Dr. Jekyll and Mr. Hyde” by Robert Louis Stevenson, it was very noticeable that the author was used the characters of Dr. Jekyll, Mr. Hyde, and Mr. Utterson to depict this era. For instance, Dr. Jekyll represents a moral and respectful English man. However, he is hiding his evil personality and transforms into another person to be able to be himself. Nobody would suspect this gentleman and a horrible evil man can be the same person. Furthermore, we have Mr. Utterson who represents the society because he knows the truth; however, he doesn’t want to say a word because he doesn’t want to be related in a scandalous situation.
The Victorian era is depicted directly in this book because of the repression of violance, sexual desire, expression of feelings before society. Dr. Jekyll was repriming and resisting himself to be what he is, an aggressive evil man.
https://dictionary.cambridge.org/us/dictionary/english/victorian#dataset-british
https://www.newhistorian.com/strange-case-of-dr-jekyll-and-mr-hyde/3788/