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plate girder
Science; General science
A beam assembled from steel plates which are welded or bolted to one another, used to support the horizontal surface of a bridge. Plate girders generally have I-shaped cross ...
jewel bearing
Science; General science
A bearing used in quality timekeeping devices, gyros, and instruments; usually made of synthetic corundum (crystallized Al 2 O 3 ), which is more commonly known as ruby or ...
turbidite
Science; General science
A bed of sediment or sedimentary rock that was deposited from a turbidity current. A turbidity current is an underwater flow produced by movement of a turbid mass of water ...
rubella
Science; General science
A benign, infectious virus disease of humans characterized by coldlike symptoms and transient, generalized rash. This disease, also known as German measles, is primarily a ...
celery
Science; General science
A biennial umbellifer ( Apium graveolens var. dulce ) of Mediterranean origin and belonging to the plant order Apiales. Celery is grown for its petioles or leafstalks, which ...
carrot
Science; General science
A biennial umbellifer ( Daucus carota ) of Asiatic and Mediterranean origin belonging to the plant order Umbellales. The carrot is grown for its edible roots which are eaten raw ...
parsley
Science; General science
A biennial, Petroselinum crispum , of European origin belonging to the plant order Umbellales. Parsley is grown for its foliage and is used to garnish and flavor foods. It ...
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