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Webster 1913 Edition

Sinus

Si′nus

,
Noun.
;
pl. L.
Sinus
, E.
Sinuses
(#)
.
[L., a bent surface, a curve, the folds or bosom of a garment, etc., a bay. Cf.
Sine
,
Noun.
]
1.
An opening; a hollow; a bending.
2.
A bay of the sea; a recess in the shore.
3.
(Anat. & Zool.)
A cavity; a depression.
Specifically:
(a)
A cavity in a bone or other part, either closed or with a narrow opening.
(b)
A dilated vessel or canal.
4.
(Med.)
A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.
5.
(Bot.)
A depression between adjoining lobes.
☞ A sinus may be rounded, as in the leaf of the white oak, or acute, as in that of the red maple.
Pallial sinus
.
(Zool.)
See under
Pallial
.
–
Sinus venosus
.
[L., venous dilatation.]
(Anat.)
(a)
The main part of the cavity of the right auricle of the heart in the higher vertebrates.
(b)
In the lower vertebrates, a distinct chamber of the heart formed by the union of the large systematic veins and opening into the auricle.

Webster 1828 Edition

Sinus

SI'NUS

,
Noun.
[L. a bay.]
1.
A bay of the sea; a recess in the shore , or an opening in the land.
2.
In anatomy, a cavity in a bone or other part, wider at the bottom than at the entrance.
3.
In surgery, a little cavity or sack in which pus is collected; an abscess with only a small orifice.
4.
An opening; a hollow.

Definition 2024

Sinus

Sinus

See also: sinus and sinüs

German

Noun

Sinus m ‎(genitive Sinus, plural Sinus or Sinusse)

  1. (trigonometry) sine

sinus

sinus

See also: Sinus and sinüs

English

Noun

sinus ‎(plural sinuses)

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

Derived terms

Translations

Anagrams

Catalan

Pronunciation

  • IPA(key): /ˈsinus/

Noun

sinus m ‎(plural sinus)

  1. sine

Derived terms

See also

Czech

Noun

sinus m

  1. (trigonometry) sine

Related terms

Danish

Noun

sinus c (singular definite sinussen, plural indefinite sinusser)

  1. (geometry) sine

Dutch

Pronunciation

  • Hyphenation: si‧nus

Etymology 1

From Latin sinus

Noun

sinus m ‎(plural sinussen, diminutive sinusje n)

  1. (trigonometry) sine

Etymology 2

From Latin sinus

Noun

sinus m ‎(plural sinussen, diminutive sinusje n)

  1. (anatomy) sinus

French

Pronunciation

  • IPA(key): /si.nys/

Noun

sinus m ‎(plural sinus)

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

See also

Latin

Pronunciation

Etymology 1

Of Proto-Indo-European origin.

Noun

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
Inflection

Fourth declension.

Case Singular Plural
nominative sinus sinūs
genitive sinūs sinuum
dative sinuī sinibus
accusative sinum sinūs
ablative sinū sinibus
vocative sinus sinūs
Synonyms
Derived terms
Related terms
Descendants

Etymology 2

Medieval Latin, introduced in the 12th century by Gherardo of Cremona as a translation of Arabic جَيْب ‎(jayb, “chord, sine”) (ultimately a loan from Sanskrit ज्या ‎(jyā, “bowstring”)) by confusion with جَيْب ‎(jayb, “bosom, fold in a garment”).

Noun

sinus m ‎(genitive sinūs); fourth declension

  1. (mathematics) chord of an arc, sine
Inflection

Fourth declension.

Case Singular Plural
nominative sinus sinūs
genitive sinūs sinuum
dative sinuī sinibus
accusative sinum sinūs
ablative sinū sinibus
vocative sinus sinūs
Descendants

Etymology 3

From sinus ‎(“a hollow, cavity”).

Noun

sīnus m ‎(genitive sīnī); second declension

  1. a large bowl
Inflection

Second declension.

Case Singular Plural
nominative sīnus sīnī
genitive sīnī sīnōrum
dative sīnō sīnīs
accusative sīnum sīnōs
ablative sīnō sīnīs
vocative sīne sīnī
Alternative forms

References

  • 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)
  • Félix Gaffiot (1934), “sinus”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.
  • Meissner, Carl; Auden, Henry William (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

Northern Sami

Noun

sinus

  1. locative singular of sitnu

Norwegian

Etymology

From Latin.

Noun

sinus m

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

Inflection

Related terms

Polish

Pronunciation

Noun

sinus m inan

  1. sine

Declension

Derived terms

Romanian

Etymology

From French sinus

Noun

sinus n ‎(plural sinusuri)

  1. sine (trigonometric function)


This Romanian entry was created from the translations listed at sine. It may be less reliable than other entries, and may be missing parts of speech or additional senses. Please also see sinus in the Romanian Wiktionary. This notice will be removed when the entry is checked. (more information) August 2009

Veps

Pronoun

sinus

  1. inessive of sinä

Etymology

From Latin sinus.

Pronunciation

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

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