Editing Drop (liquid) (section)

== Droplet ==
The term '''droplet''' is a diminutive form of 'drop' – and as a guide is typically used for liquid [[particle]]s of less than 500&nbsp;μm diameter. In [[pesticide application|spray application]], droplets are usually described by their perceived size (i.e., diameter) whereas the dose (or number of infective particles in the case of [[biopesticide]]s) is a function of their volume. This increases by [[Volume of a sphere|a cubic function]] relative to diameter<!-- (π.d<sup>3</sup>/6000 to convert μm into picolitres)-->; thus, a 50&nbsp;μm droplet represents a dose in 65&nbsp;pl and a 500&nbsp;μm drop represents a dose in 65 nanolitres.