An instrument for measuring the degree of porosity; specifically one for estimating the sizes of the stomata of leaves by measuring the rate at which air can be passed through them.
Origin
Early 20th century. From poro- + -meter. Compare earlier poroscope.
Definition of porometer in US English:
porometer
noun
An instrument for measuring the degree of porosity; specifically one for estimating the sizes of the stomata of leaves by measuring the rate at which air can be passed through them.
Origin
Early 20th century. From poro- + -meter. Compare earlier poroscope.