spectrum

As nouns the difference between spectrum and genealogy

is that spectrum is specter, apparition while genealogy is (countable) the descent of a person, family, or group from an ancestor or ancestors; lineage or pedigree.

As nouns the difference between spectrum and spectrometry

is that spectrum is specter, apparition while spectrometry is the measurement of the wavelength of electromagnetic radiation, especially any of several techniques used to analyze the structure of molecules; the measurement of spectra of things other than radiation, such as the masses of molecules and their breakdown products.

As nouns the difference between arena and spectrum

is that arena is sand while spectrum is specter, apparition.

As nouns the difference between sphere and spectrum

is that sphere is a regular three-dimensional object in which every cross-section is a circle; the figure described by the revolution of a circle about its diameter while spectrum is specter, apparition.

As a verb sphere

is to place in a sphere, or among the spheres; to ensphere.

As nouns the difference between spectrum and null

is that spectrum is specter, apparition while null is zero, nil; the cardinal number before einn.

As nouns the difference between spectroscopy and spectrum

is that spectroscopy is the scientific study of spectra while spectrum is specter, apparition.

As nouns the difference between gamut and spectrum

is that gamut is a (normally) complete range while spectrum is specter, apparition.

As a noun spectrum

is specter, apparition.

As a numeral set is

seven.

As a noun spectrum

is specter, apparition.

As an adjective linear is

linear (in mathematics, of first-degree polynomial).

As an initialism rgb

is .

As a noun spectrum is

specter, apparition.