a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins

a cut pile fabric with vertical ribs; usually made of cotton

large American thrush having a rust-red breast and abdomen

a flammable hydrocarbon oil used as fuel in lamps and heaters

the innermost layer of the epidermis

the body of rules applied to commercial transactions; derived from the practices of traders rather than from jurisprudence

the legislature of the United States government

spiral-shelled cephalopods