sinusoidal

See also: sinusoïdal

English

Etymology

Etymology tree

English sinusoid

Proto-Indo-European *h₂el-

Proto-Indo-European *-is

Proto-Indo-European *h₂élisder.?

Proto-Italic *-ālis

Latin -ālislbor.

Old French -albor.

▲

Latin -ālis

Old French -elbor.

▲

Latin -ālisbor.

Middle English -al

English -al

English sinusoidal

From sinusoid + -al.

Pronunciation

• (Received Pronunciation, General American, Canada) IPA^(key): /ˌsaɪnəˈsɔɪdəl/

• Audio (Southern England):

  (file)

• (Australia) IPA^(key): /ˌsɑɪnəˈsoɪdəl/
• (New Zealand) IPA^(key): /ˌsaɪnəˈsoɪdəl/
• Rhymes: -ɔɪdəl

Adjective

sinusoidal (comparative more sinusoidal, superlative most sinusoidal)

1. (mathematics) Having the shape or characteristics of a sine wave.
   • 2014, Robert Gilkey, Timothy R. Anderson, Binaural and Spatial Hearing in Real and Virtual Environments:

     An averager of the sort described earlier would operate such that, as the frequency of sinusoidal variation of ITD was increased, more and more samples of the dynamically varying ITD would fall within the averaging window and the effective ITD would tend toward their mean of zero.

2. (anatomy) Relating to any of several channels (the sinusoids) through which venous blood passes in various organs.

Derived terms

• cosinusoidal
• intrasinusoidal
• nonsinusoidal
• parasinusoidal
• perisinusoidal
• postsinusoidal
• presinusoidal
• sinusoidal function
• sinusoidalize
• sinusoidally

Translations

in the form of a sine wave

• Finnish: sinimuotoinen
• French: sinusoïdal (fr)
• German: sinusförmig
• Greek: ημιτονοειδής (el) (imitonoeidís)
• Icelandic: sínus-, sínuslaga f
• Polish: sinusoidalny (pl)
• Portuguese: senoidal (pt), sinusoidal (pt)
• Russian: синусоида́льный (ru) (sinusoidálʹnyj)
• Spanish: senoidal (es), sinusoidal (es)
• Swedish: sinusformad (sv)
• Tagalog: sinwayin

Noun

sinusoidal (plural sinusoidals)

1. A sine wave (or combination of such waves)

Portuguese

Pronunciation

 

• (Portugal) IPA^(key): /si.nu.zɔjˈdal/ [si.nu.zɔjˈðaɫ]

• (Portugal) IPA^(key): /si.nu.zɔjˈdal/ [si.nu.zɔjˈðaɫ]
  • (Southern Portugal) IPA^(key): /si.nu.zɔjˈda.li/

• Hyphenation: si‧nu‧soi‧dal

Adjective

sinusoidal m or f (plural sinusoidais)

1. sinusoidal

   Synonym: senoidal

Further reading

• “sinusoidal”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “sinusoidal”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Romanian

Etymology

Etymology tree

Latin sinuslbor.

French sinus

Ancient Greek -ο- (-o-)

Proto-Indo-European *weyd-

Proto-Indo-European *-os

Proto-Indo-European *wéydos

Proto-Hellenic *wéidos

Ancient Greek εἶδος (eîdos)

Proto-Indo-European *-os

Proto-Indo-European *-s

Proto-Indo-European *-ēs

Proto-Hellenic *-ēs

Ancient Greek -ης (-ēs)

Ancient Greek -ειδής (-eidḗs)

Ancient Greek -οειδής (-oeidḗs)bor.

Latin -oīdēsbor.

French -oïde

French sinusoïde

Proto-Indo-European *h₂el-

Proto-Indo-European *-is

Proto-Indo-European *h₂élisder.?

Proto-Italic *-ālis

Latin -ālislbor.

Old French -al

Middle French -al

French -al

French sinusoïdalbor.

Romanian sinusoidal

Borrowed from French sinusoïdal.

Adjective

sinusoidal m or n (feminine singular sinusoidală, masculine plural sinusoidali, feminine/neuter plural sinusoidale)

1. sinusoidal

Declension

Declension of sinusoidal

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative- accusative	indefinite	sinusoidal		sinusoidală	sinusoidali	sinusoidale
	definite	sinusoidalul		sinusoidala	sinusoidalii	sinusoidalele
genitive- dative	indefinite	sinusoidal		sinusoidale	sinusoidali	sinusoidale
	definite	sinusoidalului		sinusoidalei	sinusoidalilor	sinusoidalelor

Spanish

Adjective

sinusoidal m or f (masculine and feminine plural sinusoidales)

1. sinusoidal

   Synonym: senoidal

Further reading

• “sinusoidal”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), 24th edition, Royal Spanish Academy [Spanish: Real Academia Española], 30 October 2026