iridium

As nouns the difference between ir and iridium

is that ir is yesterday while iridium is iridium (chemical element).

As an adverb ir

is yesterday.

As nouns the difference between sphere and iridium

is that sphere is sphere while iridium is iridium (chemical element).

As nouns the difference between satellite and iridium

is that satellite is a moon or other smaller body orbiting a larger one while iridium is iridium (chemical element).

As nouns the difference between ruthenium and iridium

is that ruthenium is ruthenium while iridium is iridium (chemical element).

As nouns the difference between radium and iridium

is that radium is a radioactive metallic chemical element (symbol Ra) with an atomic number of 88 while iridium is a metallic chemical element (symbol Ir) with an atomic number of 77.

As a noun iridium is

iridium (chemical element).

As nouns the difference between titanium and iridium

is that titanium is a chemical element, atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc while iridium is a metallic chemical element (symbol Ir) with an atomic number of 77.

As nouns the difference between iridium and isidium

is that iridium is iridium (chemical element) while isidium is (lichenology) a vegetative reproductive structure present in some lichens; an outgrowth of the thallus surface, usually with a columnar structure, and consisting of both fungal hyphae and algal cells.