uni-, un-

(Latin: one, single; a word element for number 1)

electrostatic unit of charge
The quantity of electrical charge which repels an equal charge at a poiont in a vacuum at a distance of one centimeter with a force of one dyne.
electrostatic units
1. A system of electrical units, based on the centimeter, gram, and second, in which a unit electric charge is by definition such that two units of the same sign placed one centimeter apart in vacuo (vacuum) will repel each other with a force of one dyne.

Units in the system are usually characterized by the prefix stat-, as statampere, statvolt, etc.

2. A centimeter-gram-second system of electric and magnetic units in which the unit of charge is that charge which exerts a force of one dyne on another unit charge when separated from it by a distance of one centimeter in a vacuum.

Other units are derived from this definition by assigning unit coefficients in equations relating electric and magnetic quantities.

electrosurgical unit
An radio frequency generator, the output of which is applied to a blade or wire loop used instead of a conventional scalpel for surgical incisions or excisions.
eunuch, unique
eunuch (YOO nuhk) (noun)
A man who has been castrated: It was said that Cleopatra employed several private servants; the favorite eunuch among her servants was allowed to carry her fan.
unique (yoo NEEK) (adjective)
Unequaled, distinctive, one of a kind; typically used without qualifying modifiers: The color of Daphine's eyes was unique, or exceptional, and enchanting.

The senior eunuch in the court was in a unique position to know all the court intrigues.

flux unit
Astrophysics, the unit of flux density or "brightness" used in radio astronomy.
geographical unit, geographic unit (s) (noun); geographical units; geographic units (pl)
An area based primarily on hydrologic boundaries adjusted as needed using a specified set of criteria to accommodate the inventory and analysis of natural resources: A geographic unit can vary in scale depending on the criteria used, the level of inventory and analysis needed, and the problems perceived. In all cases, geographic units incorporate both groundwater and surface water.

geolith; rock-stratigraphic unit; lithologic unit; lithostratic unit; lithostratigraphic unit; rock unit
A lithologically (rocky) homogeneous body of strata characterized by certain observable physical features, or by the dominance of a certain rock type or combination of rock types.

Rock-stratigraphic units include groups, formations, members, and beds.

Monopolia dicitur, cum unus solus aliquod genus mercature universum emit, pretium ad suum libitum statuens. (a legal statement in Latin)
Translation: "It is said to be a monopoly when one person alone buys up the whole of one kind of commodity, fixing a price at his own pleasure."
onion (s), onions (pl)
1. A rounded edible bulb with hard pungent flesh in concentric layers beneath a flaky brown skin eaten raw or cooked as a vegetable.
2. Etymology: from about 1130, from Anglo-French, "union"; from Old French oignon (formerly, also oingnon), from Latin unionem a colloquial, rustic, Roman term for "a kind of onion"; also "pearl"; literally meaning is "one, unity".

The sense connection is the successive layers of an onion, in contrast with garlic or cloves.

Similar to or like an onion; onion-like.
testis unus, testis nullus
One witness, no witness: According to this law-principle statement, testis unus, testis nullus is unsupported testimony and so it is no better than the complete absence of testimony; so, we should not give any trust to a story we hear from just one source.