Lay midwife
A midwife who has entered the profession as an apprentice to a practicing midwife rather than attending a formal school program.
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- Lazy eye
An eye that diverges in gaze. A lazy eye is formally called strabismus. A lazy eye (strabismus) can be due to esotropia (cross-eyed) or to exotropia (wall-eyed). The danger of the condition is that the brain comes in time to rely more on one eye than the other and that part of the brain circuitry […]
- L1-L5 (lumbar vertebrae)
The symbols L1 through L5 represent the five lumbar vertebrae. The lumbar vertebrae are situated between the thoracic vertebrae and the sacral vertebrae in the spinal column.
- l-
Abbreviation for levorotatory, applied to a chemical compound, as in l-dopa. Levorotary is opposed to dextrorotary which is abbreviated as d-. From the Latin laevus, on the left-hand side.
- L
Abbreviation for liter, a metric measure of capacity that, by definition, is equal to the volume of a kilogram of water at 4 degrees centigrade and at standard atmospheric pressure of 760 millimeters of mercury. Metric equivalents — There are 1000 cubic centimeters or 1 cubic decimeter in 1 liter. U.S. equivalent — A liter […]
- LDL cholesterol
Low-density lipoprotein cholesterol, commonly referred to as ‘bad’ cholesterol. Elevated LDL levels are associated with an increased risk of heart disease. Lipoproteins, which are combinations of fats (lipids) and proteins, are the form in which lipids are transported in the blood. Low-density lipoproteins transport cholesterol from the liver to the tissues of the body.