The effect is to greatly retard heat flow by either conduction of convection.

It prevents heart disease, diabetes and kidney failure, and it greatly retards all types of cancer.

The condition of the ground greatly retarded the column by delaying the cavalry.

Lysenko's influence greatly retarded the development of genetic science in the Soviet Union.

There came a season of thunder-storms and heavy rain, which greatly retarded my work; but at last the raft was completed.

Insulation greatly retards natural convection making the primary mode of heat transfer conduction.

The crisis of 1837, indeed, was severely felt, but did not greatly retard the city's advancement, which continued unchecked until the Civil War.

There is also some evidence that combinations of therapies could greatly retard development of resistance to the partner drug.

In some versions, this power greatly retards his aging and increases as he gets older, sometimes rendering him effectively immortal.

His right leg had been caught and viciously torn, but the massive thing pressed on him in such a way as to greatly retard the flow of blood.