cesium

As a noun cesium

is cesium.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between cerium and cesium

is that cerium is a metallic chemical element (symbol Ce) with an atomic number of 58 while cesium is an alternative spelling of lang=en.

As nouns the difference between taxonomy and cesium

is that taxonomy is the science or the technique used to make a classification while cesium is cesium.

As nouns the difference between cesium and pautovite

is that cesium is cesium while pautovite is (mineralogy) an orthorhombic-dipyramidal dark steel gray mineral containing cesium, iron, potassium, rubidium, sulfur, and thallium.

As nouns the difference between cesium and natrobistantite

is that cesium is cesium while natrobistantite is (mineralogy) an isometric-hexoctahedral mineral containing antimony, bismuth, cesium, niobium, oxygen, sodium, and tantalum.

As nouns the difference between cesium and galkhaite

is that cesium is cesium while galkhaite is (mineral) an isometric-hextetrahedral mineral containing antimony, arsenic, cesium, copper, mercury, sulfur, thallium, and zinc.

As nouns the difference between cesium and cesstibtantite

is that cesium is cesium while cesstibtantite is (mineral) an isometric-hexoctahedral mineral containing antimony, cesium, fluorine, hydrogen, niobium, oxygen, sodium, and tantalum.

As nouns the difference between cesium and cesplumtantite

is that cesium is cesium while cesplumtantite is (mineral) a tetragonal colorless mineral containing antimony, calcium, cesium, lead, niobium, oxygen, sodium, tantalum, and tin.

As nouns the difference between cesium and londonite

is that cesium is cesium while londonite is (mineralogy) an isometric-hextetrahedral mineral containing aluminum, beryllium, boron, calcium, cesium, iron, lithium, manganese, oxygen, potassium, rubidium, silicon, and sodium.

As nouns the difference between cesium and gainesite

is that cesium is cesium while gainesite is (mineral) a tetragonal-ditetragonal dipyramidal blue mineral containing beryllium, calcium, cesium, hydrogen, iron, lithium, oxygen, phosphorus, potassium, sodium, and zirconium.