resistance developed at a speed of 16 knots after. various periods is shown in Figure 2 as a per cent. of the initial resistance of the freshly painted hulL. In 375 days the total resistance is exactly doubled.
chilling - the process of becoming cooler; a falling temperature. cooling, temperature reduction. freeze, freezing - the withdrawal of heat to change something from a liquid to a solid. heat dissipation - dissipation of heat.
Chilling requirement. The chilling requirement of a fruit is the minimum period of cold weather after which a fruit-bearing tree will blossom. It is often expressed in chill hours, which can be calculated in different ways, all of which essentially involve adding up the total amount of time in a winter spent at certain temperatures. Some bulbs have chilling requirements to bloom, and some seeds have chilling requirements to sprout. Biologically, the chilling requirement is a way of ensuring that vernalization occurs.