SPOCK name of the lieutenant of the Star Treck series ( Star Trek ), called Mr Spock or Mr Spock , born in Vulcan, able to smell what many beings are incapable and who has a life expectancy of more than 200 years. Represented by Leonard Nimroy, who passed away on February 27, 2015, he was one of the most recognized characters in the series, and for his classic greeting with paired fingers making a V and saying "live long and prosper". Spock is not an English word. that appears in dictionaries.