quadratus

English

Etymology

From Latin quadratus, perfect passive participle of quadro (“I make square”).

Pronunciation

• (Received Pronunciation) IPA^(key): /kwɒˈdreɪ.təs/
• (General American) IPA^(key): /kwɑˈdreɪ.təs/
• Hyphenation: qua‧dra‧tus
• Rhymes: -eɪtəs

Noun

quadratus (plural quadrati)

1. (anatomy) Any of several roughly square or rectangular muscles, e.g. in the abdomen, thigh, and eye socket.

Derived terms

• pronator quadratus
• quadratus femoris
• quadratus lumborum
• quadratus plantae

References

• “quadratus”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

Latin

Etymology

Perfect passive participle of quadrō (“make square”).

Pronunciation

• (Classical Latin) IPA^(key): /kʷaˈdraː.tus/, [kʷäˈd̪räːt̪ʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /kwaˈdra.tus/, [kwäˈd̪räːt̪us]

Participle

quadrātus (feminine quadrāta, neuter quadrātum, adverb quadrātē or quadrātim); first/second-declension participle

1. square, squared, having been made square, made into a square shape

   quadrāta Rōma ― square Rome (called such because of its ancient shape)

   pēs quadrātus ― square foot (0,0876 m²)

   littera quadrāta ― capital letter

2. (mathematics) (of a number) square

   quadrātus numerus ― square number

3. proportionate, regular, well made, vigorous

   quadrāta statūra ― average height

   quadrātī boves ― vigorous oxen

Declension

First/second-declension adjective.

Number	Singular				Plural
Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Nominative	quadrātus	quadrāta	quadrātum		quadrātī	quadrātae	quadrāta
Genitive	quadrātī	quadrātae	quadrātī		quadrātōrum	quadrātārum	quadrātōrum
Dative	quadrātō		quadrātō		quadrātīs
Accusative	quadrātum	quadrātam	quadrātum		quadrātōs	quadrātās	quadrāta
Ablative	quadrātō	quadrātā	quadrātō		quadrātīs
Vocative	quadrāte	quadrāta	quadrātum		quadrātī	quadrātae	quadrāta

Noun

quadrātus m (genitive quadrātī); second declension

1. a square, quadrate
2. (mathematics) a square number

   Synonym: quadrātus numerus

Declension

Second-declension noun.

Case	Singular	Plural
Nominative	quadrātus	quadrātī
Genitive	quadrātī	quadrātōrum
Dative	quadrātō	quadrātīs
Accusative	quadrātum	quadrātōs
Ablative	quadrātō	quadrātīs
Vocative	quadrāte	quadrātī

Synonyms

• (square): quadrātum, quadrum

Derived terms

• quadrātārius
• quadrātiō

Related terms

• quadrātē
• quadrātor
• quadrātum
• quadrātūra
• quadrō
• quadrula
• quadrus

 

Descendants

• Asturian: cuadradu
• Catalan: quadrat
• French: carré, cadrat
• Galician: cadrado
• Italian: quadrato
• Norman: cârré
• Polish: kwadrat
• Portuguese: quadrado
• Romanian: pătrat, cvadrat
• Spanish: cuadrado

References

• “quadratus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “quadratus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• quadratus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• quadratus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “quadratus”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• “quadratus”, in William Smith, editor (1848), A Dictionary of Greek and Roman Biography and Mythology, London: John Murray