Nephila clavipes. Arachnology is the scientific study of spiders and related animals such as scorpions, pseudoscorpions, and harvestmen, collectively called arachnids. Those who study spiders and other arachnids are arachnologists. The word arachnology derives from Greek á¼ÏÎ¬ÏÎ½Î·, arachnÄ, spider; and -Î»Î¿Î³Î¯Î±, -logia
Heavy Menstrual Bleeding: Symptoms and Treatment. Heavy menstrual bleeding (called menorrhagia by health care professionals) is defined as soaking a pad and/or tampon every hour or less during each menstrual cycle. For many women, heavy menstrual bleeding is a huge obstacle to their lifestyles.
Menstruation (Definition). Menstruation is also known as Menses. Menstruation is the regular cyclical shedding of uterine (womb) lining associated with bleeding. Begins at puberty (menarche) and continus during a woman's fertile years until menopause. Cycles usually average 28 days, but can vary from 21 - 35 days.