Galena, Illinois. Galena is the largest city in and the county seat of Jo Daviess County, Illinois, with a population of 3,429 at the 2010 census. A 581-acre (235 ha) section of the city is listed on the National Register of Historic Places as the Galena Historic District.
noun. Influence from members of oneâs peer group: his behaviour was affected by drink and peer pressure. More example sentences. 1  At the age of twelve I was influenced by peer pressure and started to drink cider which is a popular drink among young people as it is cheap and strong.
peer noun [ C ] (HIGH RANK) âº in the UK, a person who has a high social position and any of a range of titles, including baron, earl, and duke, or a life peer: a hereditary peer.