A level lower than normal.
- l.-calcium rickets — see rickets.
- l. contrast — an x-ray film with a poorly defined image because of insufficient contrast between light and dark shadows.
- l.-density lipoprotein — see lipoprotein.
- l. larkspur — see delphinium.
- l. lupin — lupinus pusillus.
- l. milk fat syndrome — dramatic fall in butterfat content of milk (as low as 50%) while volume remains normal, due to low fiber content of ration.
- l.-phosphorus rickets — see rickets.
- l. whorled milkweed — asclepias pumila.
- l. withers — a conformation defect in a horse.
