As nouns the difference between volcano and volcanist

is that volcano is a vent or fissure on the surface of a planet (usually in a mountainous form) with a magma chamber attached to the mantle of a planet or moon, periodically erupting forth lava and volcanic gases onto the surface while volcanist is (volcanology) someone interested in volcanism and volcanology the study of volcanoes.

Volcanist is a synonym of vulcanist.

As nouns the difference between vulcanist and volcanist

is that vulcanist is someone interested in volcanism, the study of volcanoes while volcanist is someone interested in volcanism and volcanology the study of volcanoes.

As nouns the difference between volcanism and vulcanist

is that volcanism is (volcanology) any of the natural phenomena and processes associated with the action of volcanos, geysers and fumaroles while vulcanist is someone interested in volcanism, the study of volcanoes.

As nouns the difference between volcano and vulcanist

is that volcano is a vent or fissure on the surface of a planet (usually in a mountainous form) with a magma chamber attached to the mantle of a planet or moon, periodically erupting forth lava and volcanic gases onto the surface while vulcanist is someone interested in volcanism, the study of volcanoes.

As nouns the difference between vulcanism and vulcanist

is that vulcanism is while vulcanist is someone interested in volcanism, the study of volcanoes.

Psi is a see also of mmhg.

As nouns the difference between psi and mmhg

is that psi is psi (greek letter) while mmhg is a unit of pressure equal to the amount of fluid pressure one millimeter deep in mercury at zero degrees centigrade on earth.

As an adjective psi

is dog (when used attributively).

As a noun desert

is desert.

As an adjective desert

is deserted.

As a proper noun kalahari is

a large desert in southern africa.

As proper nouns the difference between mongolia and gobi

is that mongolia is mongolia while gobi is gobi.

As a noun china

is (uncountable) the root of a climbing plant, smilax china l, once believed to have important medicinal properties or china can be (cockney rhyming slang|countable) mate (ie, friend).

As a proper noun gobi is

gobi.

As a noun eruption

is eruption.

As an adjective strombolian is

(geology) (strombolian).