menhaden
men.ha.den \men-'ha-d-*n, m*n-\ n or menhaden also menhadens [of Algonquian origin; prob. akin to Narraganset munnawhatteau^g menhade] pl n : a marine fish (Brevoortia tyrannus) of the herring family abundant along the Atlantic coast of the U.S. where it is used for bait or converted into oil and fertilizer