পিনাক’ল’নপিনে
পিনিয়েল গ্ৰন্থি (Assamese)
1. The pineal gland (also known as the pineal body or epiphysis cerebri) is a small endocrine gland in the brain of most vertebrates. In the darkness the pineal gland produces melatonin, a serotonin-derived... from wikipedia.org