pathname separator - meaning and definition. What is pathname separator
Diclib.com
Online Dictionary

What (who) is pathname separator - definition

Oil/water separator; API separator; Parallel plate separator; API Separator; API oil-water separator

pathname separator      
<file system> The character used to separate elements of a path or pathname. Under Unix and POSIX.1 compliant systems the pathname separator is the (forward) slash, in MS-DOS backslash serves the same purpose. For obvious reasons the no directory or file name can contain this character. (1996-11-21)
Separator (milk)         
  • A man operating a manual separator in 1925.
CENTRIFUGAL DEVICE THAT SEPARATES MILK INTO CREAM AND SKIMMED MILK
Cream Separator; Milk separator; Cream separators; Cream separator; Cream seperator
A separator is a centrifugal device that separates milk into cream and skimmed milk. Separation was commonly performed on farms in the past.
Generator (category theory)         
IN CATEGORY THEORY
Separator (category theory)
In mathematics, specifically category theory, a family of generators (or family of separators) of a category \mathcal C is a collection \mathcal G \subseteq Ob(\mathcal C) of objects in \mathcal C, such that for any two distinct morphisms f, g: X \to Y in \mathcal{C}, that is with f \neq g, there is some G in \mathcal G and some morphism h : G \to X such that f \circ h \neq g \circ h. If the collection consists of a single object G, we say it is a generator (or separator).

Wikipedia

API oil–water separator

An API oil–water separator is a device designed to separate gross amounts of oil and suspended solids from industrial wastewater produced at oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial oily water sources. The API separator is a gravity separation device designed by using Stokes Law to define the rise velocity of oil droplets based on their density and size. The design is based on the specific gravity difference between the oil and the wastewater because that difference is much smaller than the specific gravity difference between the suspended solids and water. The suspended solids settles to the bottom of the separator as a sediment layer, the oil rises to top of the separator and the cleansed wastewater is the middle layer between the oil layer and the solids.

The name is derived from the fact that such separators are designed according to standards published by the American Petroleum Institute (API).