As a noun geology

is the science that studies the structure of the earth (or other planets), together with its origin and development, especially by examination of its rocks.

As a proper noun Neptunism is

a discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans.

As proper nouns the difference between rock and neptunism

is that rock is {{surname|topographic|from=Middle English}} for someone living near a rock or an oak ( {{term|atter|lang=enm}} + {{term|oke|lang=enm}} ) while Neptunism is a discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans.

As a noun rock

is the naturally occurring aggregate of solid mineral matter that constitutes a significant part of the earth's crust.

As a verb rock

is to move gently back and forth.

As a noun crystallisation

is an alternative spelling of lang=en.

As a proper noun Neptunism is

a discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans.

Neptunism is a related term of neptunist.

As a noun Neptunist

is a proponent of Neptunism.

As a proper noun Neptunism is

a discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans.

In botany|lang=en terms the difference between inflorescence and thyrse

is that inflorescence is (botany) flower cluster while thyrse is (botany) a type of inflorescence; a compact panicle having an obscured main axis and cymose subaxes.

As nouns the difference between inflorescence and thyrse

is that inflorescence is (botany) flower cluster while thyrse is (botany) a type of inflorescence; a compact panicle having an obscured main axis and cymose subaxes.

In botany|lang=en terms the difference between cymose and thyrse

is that cymose is (botany) having a usually flat-topped flower cluster in which the main and branch stems each end in a flower that opens before those below it or to its side while thyrse is (botany) a type of inflorescence; a compact panicle having an obscured main axis and cymose subaxes.

As an adjective cymose

is (botany) having a usually flat-topped flower cluster in which the main and branch stems each end in a flower that opens before those below it or to its side.

As a noun thyrse is

(botany) a type of inflorescence; a compact panicle having an obscured main axis and cymose subaxes.

As nouns the difference between volcano and vulcanicity

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 vulcanicity is the quality or state of being volcanic.

As a noun 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.

As an adverb volcanically is

by means of a volcano.

As nouns the difference between volcanology and volcanist

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

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.