The hypothalamus contains special cells called neurosecretory cellsâneurons that secrete hormones: 1  Thyrotropin-releasing hormone (TRH) 2  Growth hormone-releasing hormone (GHRH) 3  Growth hormone-inhibiting hormone (GHIH) 4  Gonadotropin-releasing hormone (GnRH) 5  Corticotropin-releasing hormone (CRH) 6  Oxytocin. 7  Antidiuretic hormone (ADH)
Meaning: Platform for a lookout at or near the top of a mast. Classified under: Nouns denoting man-made objects. Hypernyms (crow's nest is a kind of...): platform (a raised horizontal surface) Holonyms (crow's nest is a part of...): ship (a vessel that carries passengers or freight)
Abundant almost everywhere in North America, crows start building their nests as early as March in warmer climate zones and as late as mid-July in colder ones. A few weeks before that, the family group, which may consist of two to nine related birds, returns to its usual nesting territory to scout out locations.