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/ˈhabiˌtat/ Noun, pl. habitats 1. An ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism. It is the natural environment in which an organism lives, or the physical environment that surrounds (influences and is utilized by) a species population. ( 2. A specific place or natural conditions in which a plant or animal lives. ( 3. Place where an organism or a biological population normally lives or occurs. ( 4. The location or environment where an organism (or a thing) is most likely to be found, e.g. the body part of the host of a parasite as in the scalp of the host is the habitat of a head louse. ( 5. The home to a particular organism where the species will attempt to be as adaptive as possible to that particular environment. ( 6. The place being occupied by an organism, population, or community. ( Word origin: As a technical term in Latin texts on English flora and fauna, literally “it inhabits,” third person singular present indicative of habitare “to live, dwell,” frequentative of habere “to have, to hold,...

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/ˈhaCHliNG/ Noun, pl. hatchlings 1. A bird or reptile that has newly emerged from an egg. ( 2. A newly hatched bird, reptile or other animal that has emerged from an egg. ( Word origin: From Middle English hachen (early 13c.), probably from an unrecorded Old English *hæccan, of unknown origin, related to Middle High German, German hecken “to mate” (used of birds). + diminutive suffix...

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Haversian canal

/həˈvərZHən/ Noun, pl. Haversian canals 1. A series of tubes around narrow channels formed by lamellae. This is the region of bone called compact bone. Osteons are arranged in parallel to the long axis of the bone. The Haversian canals surround blood vessels and nerve cells throughout the bone and communicate with osteocytes in lacunae (spaces within the dense bone matrix that contain the living bone cells) through canaliculi. This unique arrangement is conducive to mineral salt deposits and storage which gives bone tissue its strength. ( 2. A hollow channel in the center of an osteon, running parallel to the length of a bone. ( 3. Any of the small vascular canals at the center of the osteon, running longitudinally to the length of a bone, and containing blood vessels, nerves and lymphatics. ( 4. Any of the minute tubes that form a network in bone and contain blood vessels. (Google Dictionary) 5. Any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone. ( Also called Canals of Havers, named after British physician Clopton...

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Noun 1. The study of blood, the blood-forming organs, and blood diseases. Hematology includes the study of etiology, diagnosis, treatment, prognosis, and prevention of blood diseases that affect the production of blood and its components, such as blood cells, hemoglobin, blood proteins, and the mechanism of coagulation. ( 2. Branch of Biology that deals the study of blood and blood – forming organs. ( 3. A sub-specialty of Internal Medicine concerned with morphology, Physiology, and Pathology of the Blood and Blood-forming Tissues. (   Word origin: From the Greek αἷμα haima “blood” and...

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