Category: L
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Light difference
The difference between the two eyes with respect to sensitivity to light intensity.
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Ligating module
In orthodontics an appliance, typically made of polyurethane, that fits over a bracket and holds an arch wire in place.
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Ligase chain reaction
A technique for amplifying the quantity of specific sequences of nucleic acid in a specimen. The patient’s DNA, or specimens thought to contain pathogenic DNA, are mixed with DNA ligase and oligonucleotide probes. Double-stranded DNA is denatured. Probes bind to the complementary strands on any denatured target DNA. Ligase joins the bound probes, and multiple…
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Ligand
In chemistry, an organic molecule attached to a central metal ion by multiple bonds.
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Ligamentum teres
In the adult, the closed remnant of the fetal umbilical vein. It runs inside the free edge of the falciform ligament from the underside of the umbilicus to the liver.
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Ligamentum flavum
A ligament that binds adjacent vertebral laminae to each other.
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Ligamentum arteriosum
In the adult, the cordlike remnant of the fetal ductus arteriosus between the left pulmonary artery and the arch of the aorta. Just after birth, the ductus arteriosus constricts and begins to fill with endothelial cells, and within a few months the ductus arteriosus is completely closed. For the remainder of one’s life, the closed…
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Life-sustaining therapy
Therapy of a critically ill patient that, if discontinued, would cause the patient to die.
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Lifestyle redesign
A comprehensive customized program of community-based occupational therapy, intended to improve daily work, recreation, and health practices as well as the social interactions of independently living people, especially older adults.
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Life skills
Any personal ability that helps an individual to cope with people, problems, situational changes, or stress. Life skills include adaptability, creativity, critical thinking, decision making; emotional intelligence, listening, negotiation, relationship building, and self-awareness.