As a noun binoculars

is a hand-held device consisting of a series of lenses and prisms, used to magnify objects so that they can be better seen from a distance, and looked at through both eyes.

As an adjective binoculared is

sporting binoculars.

As a noun perspiration

is the action or process of perspiring.

As an adjective perspiratory is

of or pertaining to perspiration.

In chemistry terms the difference between allotrope and chaolite

is that allotrope is any form of an element that has a distinctly different molecular structure to another form of the same element while chaolite is an allotrope of carbon (an extended polyyne) believed to form in meteorite impacts.

As nouns the difference between carbon and chaolite

is that carbon is alternative form of (l) while chaolite is (chemistry) an allotrope of carbon (an extended polyyne) believed to form in meteorite impacts.

As nouns the difference between piercing and piercingness

is that piercing is body piercing while piercingness is the quality of being piercing.

As adjectives the difference between weary and fatigate

is that weary is having the strength exhausted by toil or exertion; tired; fatigued while fatigate is wearied; tired; fatigued.

As verbs the difference between weary and fatigate

is that weary is to make or to become weary while fatigate is to weary; to tire; to fatigue.

As a noun tire

is bundle, skein, hank.

As a verb fatigate is

(obsolete) to weary; to tire; to fatigue.

As an adjective fatigate is

(obsolete) wearied; tired; fatigued.

As verbs the difference between fatigue and fatigate

is that fatigue is to tire or make weary by physical or mental exertion while fatigate is to weary; to tire; to fatigue.

As a noun fatigue

is a weariness caused by exertion; exhaustion.

As an adjective fatigate is

wearied; tired; fatigued.

As a proper noun gun

is .

As a noun spg is

(military) self-propelled gun.

As nouns the difference between polydimethylsiloxane and dimethylpolysiloxane

is that polydimethylsiloxane is the simplest silicone, being a polymer having a repeat unit of -Si(CH₃)₂-O- ; its properties depend on the degree of polymerization and range from that of an oil to a plastic while dimethylpolysiloxane is polydimethylsiloxane.