The word is in the Wiktionary

16 short excerpts of Wiktionnary (A collaborative project to produce a free-content dictionary.)

— English words —

• spectrum n. A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes.
• spectrum n. Specifically, a range of colours representing light (electromagnetic radiation) of contiguous frequencies;…
• spectrum n. (Psychology, education, usually with the) The autism spectrum.
• spectrum n. (Chemistry) The pattern of absorption or emission of radiation produced by a substance when subjected…
• spectrum n. (Mathematics, linear algebra) The set of eigenvalues of a matrix.
• spectrum n. (Mathematics, functional analysis) Of a bounded linear operator A, the set of scalar values λ such that…
• spectrum n. (Abstract algebra, algebraic geometry) The set, denoted Spec(R), of all prime ideals of a given ring…
• spectrum n. (Obsolete) Specter, apparition.
• spectrum n. The image of something seen that persists after the eyes are closed.

— English words, defined in French —

• spectrum n. (Physique) Spectre.
• spectrum n. Spectre, gamme, éventail, plage.

— English words, defined in Spanish —

• spectrum s. Espectro.
• spectrum s. Gama.

— In Dutch —

• spectrum n. (Natuurkunde) verzameling als functie van de frequentie gemeten…
• spectrum n. Kleurenband.
• spectrum n. Reeks van verscheidenheden.

76 English words from 9 English definitions

absorption Abstract Abstract␣algebra after algebra algebraic algebraic␣geometry all analysis apparition are autism autism␣spectrum bounded Chemistry closed colours contiguous continuous denoted dimensional education eigenvalues electromagnetic emission extremes eyes frequencies functional functional␣analysis geometry given ideals image infinite light linear linear␣algebra linear␣operator Mathematics matrix Obsolete of␣a of␣all one one-dimensional operator pattern persists possibly prime prime␣ideals produced Psychology radiation range representing ring scalar seen set something Spec Specifically Specter spectrum subjected substance such such␣that that the usually values when with

7 English words from 7 foreign definitions

als Gama Physique plage Reeks Spectre van

9 foreign words from 7 foreign definitions

Espectro éventail frequentie functie gamme gemeten Natuurkunde verscheidenheden verzameling

8 suffixes (New words found by adding one or more letters at the end of the word.)

spectrums spectrumy spectrum␣analyser spectrum␣analyzer spectrum␣disorder spectrum␣analysers spectrum␣analyzers spectrum␣disorders

5 times in the middle (New words found by adding letters in front and at the end of the word.)

eigenspectrums light␣spectrums optical␣spectrums political␣spectrums absorption␣spectrums

25 prefixes (New words found by adding one or more letters in front of the word.)

bispectrum subspectrum trispectrum autospectrum band␣spectrum line␣spectrum mass␣spectrum polyspectrum Bloch␣spectrum broadspectrum broad-spectrum eigenspectrum light␣spectrum multispectrum on␣the␣spectrum autism␣spectrum pseudospectrum nuclear␣spectrum optical␣spectrum visible␣spectrum autistic␣spectrum hydrogen␣spectrum political␣spectrum absorption␣spectrum first-order␣spectrum

19 words-in-word (Words found as is inside the word. Minimum size 3 letters.)

ctr CTR ctr. Ctr. ECT ect. pec PEC rum Rum Rùm SPE spec SPEC spec. spect SPECT -spect TRU

12 words-in-word RTL (Words found written from right to left, inside the word. Minimum size 3 letters.)

cep CEP ceps CEPs eps Eps EPs EPS RTC tce TCE URT

2 anagrams (New words found by changing the order of the letters.)

cepstrum crumpets

7 anagrams found with an extra letter (New words formed with all the letters from the word and an extra letter.)

computers plectrums prescutum prime␣cuts Schumpert spectrums spectrumy

10 anagrams found minus a letter (New words formed with all the letters from the word minus a letter.)

crumpet cumpers cupster precums precuts rectums restump stumper sumpter Sumpter

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