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/ˈlīmən/ Noun, pl. limens, lamina 1. A threshold of a physiological or psychological response. ( 2. Entrance; the external opening of a canal or space, such as limen insulae. ( 3. The smallest detectable sensation. ( Syn: threshold Word origin: Latin word for “threshold, cross-piece,...

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/ˈlimənl/ Adjective 1. Pertaining to a threshold or entrance. ( 2. Relating to a beginning or first stage of a process; inceptive; inchoative; marginal; insignificant. ( 3. Pertaining to a stimulus just strong enough to excite a tissue, e.g., nerve or muscle. ( 4. Occupying a position at, or on both sides of, a boundary or threshold. (Google Dictionary) Word origin: From Latin limen “threshold, cross-piece,...

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Noun 1. The scientific study of bodies of fresh water for their biological and physical and geological properties.The study of freshwater ecosystems. ( 2. The study of inland waters. It covers the biological, chemical, physical, geological, and other attributes of all inland waters (running and standing waters, both fresh and saline, natural or man-made). This includes the study of lakes and ponds, rivers, springs, streams and wetlands. (   Syn: freshwater science Word origin: From Greek: Λίμνη limnee, “lake”; and λόγος, logos,...

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Noun, pl. lineae 1. Latin for “line.” ( 2. Any long marking, dark or bright, on a planet or moon’s surface. (

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Linea alba

Noun (Dentistry) 1. Term used in dentistry to describe a horizontal streak on the inner surface of the cheek, level with the biting plane. It usually extends from the commissure to the posterior teeth and can extend to the inner lip mucosa and corners of the mouth. It is a common finding and most likely associated with pressure, frictional irritation, or sucking trauma from the facial surfaces of the teeth. It may be found in individuals who chew tobacco, and may be mistaken for a lesion requiring treatment. ( 2. A whitish fibrous band running vertically along the midline of the abdomen, from the umbilicus to the pubis, comprised chiefly of connective tissue.( (Anatomy) 1. A fibrous structure that runs down the midline of the abdomen in humans and other vertebrates. In humans linea alba runs from the xiphoid process to the pubic symphysis. The name means white line and the linea alba is indeed white, being composed mostly of collagen connective tissue. It is formed by the fusion of the aponeuroses of the abdominal muscles, and it separates the left and right rectus abdominis muscles. In muscular individuals its presence can be seen on the skin, forming the depression between the left and right halves of a “six pack.” ( 2. A whitish linear band of tissue slightly elevated on the inside of cheek, resulting from the teeth...

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