Many verses in quran mentions the term غلام ghulam? From these verses, can we identify the characteristics that fits the term ghulam? What are they?
Ghulam has root Gh-Lam-Miim, this means "excited with lust, stirred up, tumultuous, period from birth to the seventeenth year, youth, young man, boy."
Lanes Arabic Lexicon states that the primary meaning of ghulam is "young male, youth, adolescent". It also says that it can mean "slave" or "servant".