A service similar to a private branch exchange, but providing switching at the central office instead of at the customer's premises.
dextran
dextran
noun
(biochemistry) A biopolymer of glucose produced by enzymes of certain bacteria; used as a substitute for blood plasma, and as a stationary phase in chromatography.
dextrin
dextrin
noun
(biochemistry) Any of a range of oligomers of glucose, intermediate in complexity between maltose and starch, produced by the enzymatic hydrolysis of starch; used commercially as adhesives.
externa
externe
externe
noun
A person affiliated with an institution who does not reside there, especially a doctor or medical student in attendance upon a hospital, but not residing in it.
externs
externs
noun
plural of extern
narthex
narthex
noun
(architecture) A western vestibule leading to the nave in some Christian churches.
