DIVIDER
divider
(noun) a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements
partition, divider
(noun) a vertical structure that divides or separates (as a wall divides one room from another)
divider
(noun) a person who separates something into parts or groups
splitter, divider
(noun) a taxonomist who classifies organisms into many groups on the basis of relatively minor characteristics
Source: WordNet® 3.1
Etymology
Noun
divider (plural dividers)
An object that separates.
A piece of card placed in a ring binder to separate groups of documents.
A device resembling a drawing compass and used to transfer measurements of length.
(British, US) The median (US) or central reservation (UK) of a highway or other road where traffic in opposite directions are kept separated.
A person who divides or separates.
Source: Wiktionary
Di*vid"er, n.
1. One who, or that which, divides; that which separates anything
into parts.
2. One who deals out to each his share.
Who made me a judge or a divider over you Luke xii. 14.
3. One who, or that which, causes division.
Hate is of all things the mightiest divider. Milton.
Money, the great divider of the world. Swift.
4. pl.
Definition: An instrument for dividing lines, describing circles, etc.,
compasses. See Compasses.
Note: The word dividers is usually applied to the instrument as made
for the use of draughtsmen, etc.; compasses to the coarser instrument
used by carpenters.
Source: Webster’s Unabridged Dictionary 1913 Edition