sinus

Borrowed from Latin sinus.

• IPA^(key): /ˈsaɪnəs/
• Rhymes: -aɪnəs

sinus (plural sinuses)

1. (anatomy) A pouch or cavity in any organ or tissue, especially the paranasal sinus.
2. (anatomy) A channel for transmitting venous blood.
3. (botany) A notch or depression between two lobes or teeth in the margin of an organ.
4. (pathology) An abnormal cavity or passage such as a fistula, caused by the destruction of tissue.
5. A bay of the sea; a recess in the shore.

• Sunis, nisus

From Latin sinus.

• (Balearic, Central, Valencian) IPA^(key): /ˈsi.nus/

sinus m (plural sinus)

1. sine

• cosinus

• tangent
• cosecant
• secant
• cotangent

• “sinus” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.

sinus m

1. (trigonometry) sine
2. (anatomy) sinus

• kosinus

• sinus in Příruční slovník jazyka českého, 1935–1957
• sinus in Slovník spisovného jazyka českého, 1960–1971, 1989
• sinus in Akademický slovník cizích slov, 1995, at prirucka.ujc.cas.cz

sinus c (singular definite sinussen, plural indefinite sinusser)

1. (geometry) sine

• Audio

  (file)

• Hyphenation: si‧nus

From Latin sinus.

sinus m (plural sinussen, diminutive sinusje n)

1. (trigonometry) sine

From Latin sinus.

sinus m (plural sinussen, diminutive sinusje n)

1. sinus

Unadapted borrowing from Latin sinus. Compare the inherited doublet sein.

• IPA^(key): /si.nys/

sinus m (plural sinus)

1. (anatomy) sinus
2. (trigonometry) sine

• cosécante
• cosinus
• cotangente
• sécante
• tangente

• “sinus” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

From Proto-Indo-European *sinos; akin to Albanian gji ‘breast, bosom’.[1]

The mathematical sense ‘chord of an arc, sine’ was introduced in the 12th century by Gherardo of Cremona as a semantic loan from Arabic جَيْب‎ (jayb, “chord, sine”) (ultimately a loan from Sanskrit ज्या (jyā, “bowstring”)) by confusion with جَيْب‎ (jayb, “bosom, fold in a garment”).

• (Classical) IPA^(key): /ˈsi.nus/, [ˈsɪ.nʊs]

sinus m (genitive sinūs); fourth declension

1. a hollow, cavity
2. curve, fold, winding
3. gulf, bay
4. bosom
5. fold of the toga over the breast, pocket, lap
6. heart, secret feelings
7. (Medieval, mathematics) chord of an arc, sine

Fourth-declension noun.

• (bosom): pectus

• sinuōsē
• sinuōsus

• sinuō

From Proto-Indo-European *sh₁ih₂sno-, deverbative of *seh₁y- ‘to sift, strain’ (compare Ancient Greek ἠθέω (ēthéō), Lithuanian sijóti, Serbo-Croatian sȉjati).[1]

• (Classical) IPA^(key): /ˈsiː.nus/, [ˈsiː.nʊs]

sīnus m (genitive sīnī); second declension

1. a large bowl

Second-declension noun.

• sīnum

• sinus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• sinus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• sinus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• sinus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
• Carl Meissner; Henry William Auden (1894) Latin Phrase-Book‎, London: Macmillan and Co.
  • the heart of the city: sinus urbis (Sall. Cat. 52. 35)
    
  • the city is situate on a bay: urbs in sinu sita est
    
  • to rejoice in secret: in sinu gaudere (Tusc. 3. 21. 51)
    
  • to love and make a bosom friend of a person: aliquem in sinu gestare (aliquis est in sinu alicuius) (Ter. Ad. 4. 5. 75)
    
  • (ambiguous) to be driven into the arms of philosophy: in sinum philosophiae compelli
    
• sinus in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• sinus in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly

sinus

1. locative singular of sitnu

From Latin sinus.

sinus m (definite singular sinusen, indefinite plural sinuser, definite plural sinusene)

1. (trigonometry) sine
2. (anatomy) sinus

• cosinus

• “sinus” in The Bokmål Dictionary.

From Latin sinus.

sinus m (definite singular sinusen, indefinite plural sinusar, definite plural sinusane)

1. (trigonometry) sine
2. (anatomy) sinus

• cosinus

• “sinus” in The Nynorsk Dictionary.

• IPA^(key): /ˈsi.nus/

• audio

  (file)

sinus m inan

1. sine

• sinusowy, sinusoida

From French sinus

sinus n (plural sinusuri)

1. sine (trigonometric function)

sinus

1. inessive of sinä