As adjectives the difference between restrictive and unrestrictive

is that restrictive is confining, limiting, containing with in defined bounds while unrestrictive is not restrictive.

In physics|lang=en terms the difference between friction and superlubricity

is that friction is (physics): a force that resists the relative motion or tendency to such motion of two bodies in contact while superlubricity is (physics) a situation in which the friction between two surfaces varies greatly depending on their mutual orientation, especially when it nearly vanishes in certain conditions.

As nouns the difference between friction and superlubricity

is that friction is the rubbing of one object or surface against another while superlubricity is (physics) a situation in which the friction between two surfaces varies greatly depending on their mutual orientation, especially when it nearly vanishes in certain conditions.

As nouns the difference between orientation and superlubricity

is that orientation is (uncountable) the act of orienting or the state of being oriented while superlubricity is (physics) a situation in which the friction between two surfaces varies greatly depending on their mutual orientation, especially when it nearly vanishes in certain conditions.

As nouns the difference between tetraethyl and tetraethylorthosilicate

is that tetraethyl is four ethyl groups in a molecule while tetraethylorthosilicate is the tetraethyl ester of orthosilicic acid, Si(O-CH₂CH₃)4

As nouns the difference between ester and tetraethylorthosilicate

is that ester is ester while tetraethylorthosilicate is (organic compound) the tetraethyl ester of orthosilicic acid, si(o-ch₂ch₃)₄.

As nouns the difference between gene and tetramutant

is that gene is embarrassment while tetramutant is (genetics) a gene that has four mutations (often of the same type at different locations).

As a verb gene

is .

As nouns the difference between mutation and tetramutant

is that mutation is mutation while tetramutant is (genetics) a gene that has four mutations (often of the same type at different locations).

As an initialism map

is (travel) modified american plan, a hotel rate that included accommodation, breakfast and dinner, but not lunch.

As a noun topophotomap is

a map created by superimposing topographic features (especially contours) onto a series of photographs.

As an adjective topographic

is of, or relating to topography.

As a noun topophotomap is

a map created by superimposing topographic features (especially contours) onto a series of photographs.

As nouns the difference between contour and topophotomap

is that contour is an outline, boundary or border, usually of curved shape while topophotomap is a map created by superimposing topographic features (especially contours) onto a series of photographs.