adj · noun · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
/kwɒdˈɹætɪk/
/kwəˈdɹætɪk/
Southern-England:Recorded audio is listed in the source snapshot.
CMU ARPABET:K W AA0 D R AA1 T IH0 K
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Square-shaped.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adj
Meaning 2
Of a polynomial, equation or function, second-degree: involving the second power (square) of a variable but no higher powers, as ax2+bx+c.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A quadratic polynomial, function or equation.
Definition source: English Wiktionary via Wiktextract
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
adjective
Meaning 4
of or relating to the second power
Definition source: Princeton WordNet 3.0
Examples
quadratic equation
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
adjective
Meaning 5
of or relating to or resembling a square
Definition source: Princeton WordNet 3.0
Examples
quadratic shapes
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
a polynomial of the second degree
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: quadratic polynomial
Antonyms: none provided
Broader terms: polynomial, multinomial
7
noun
Meaning 7
an equation in which the highest power of an unknown quantity is a square
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: quadratic equation
Antonyms: none provided
Broader terms: equation
History
Etymology
From French quadratique (1765), from Latin quadrātus + -ique (English -ic), form of quadrō (“to make square”), from quādrus (“square”), ultimately from Proto-Indo-European *kwetwóres (“four”), whence also Latin quartus (“fourth”).
Across languages
Translations
43 source translations are retained for this English entry.
Armenian:
քառակուսի
(kʻaṙakusi)
— of a class of polynomial of the form y = ax2 + bx + c
Azerbaijani:
kvadratik
— of a class of polynomial of the form y = ax2 + bx + c
Belarusian:
квадратны
(kvadratny)
— of a class of polynomial of the form y = ax2 + bx + c
Bulgarian:
квадратен
(kvadraten)
— of a class of polynomial of the form y = ax2 + bx + c
Catalan:
quadràtic
— of a class of polynomial of the form y = ax2 + bx + c
Chinese Mandarin:
二次
(èrcì)
— of a class of polynomial of the form y = ax2 + bx + c
Czech:
kvadratický
— of a class of polynomial of the form y = ax2 + bx + c
Dutch:
kwadratisch
— of a class of polynomial of the form y = ax2 + bx + c
Esperanto:
kvadrata
— of a class of polynomial of the form y = ax2 + bx + c
Finnish:
toisen asteen
— of a class of polynomial of the form y = ax2 + bx + c
French:
quadratique
— of a class of polynomial of the form y = ax2 + bx + c
Georgian:
კვადრატული
(ḳvadraṭuli)
— of a class of polynomial of the form y = ax2 + bx + c
German:
quadratisch
— of a class of polynomial of the form y = ax2 + bx + c
Greek:
τετραγωνικός
(tetragonikós)
— of a class of polynomial of the form y = ax2 + bx + c
Hindi:
द्विघात
(dvighāt)
— of a class of polynomial of the form y = ax2 + bx + c
Indonesian:
kuadratik
— of a class of polynomial of the form y = ax2 + bx + c
Indonesian:
kuadratis
— of a class of polynomial of the form y = ax2 + bx + c
Italian:
quadratico
— of a class of polynomial of the form y = ax2 + bx + c
Japanese:
二次
(niji)
— of a class of polynomial of the form y = ax2 + bx + c
Kazakh:
шаршы
(şarşy)
— of a class of polynomial of the form y = ax2 + bx + c
Khmer:
ដឺក្រេទីពីរ
(dəɨkrei tii pii)
— of a class of polynomial of the form y = ax2 + bx + c
Korean:
이차
(icha)
— of a class of polynomial of the form y = ax2 + bx + c
Kyrgyz:
чарчы
(carcı)
— of a class of polynomial of the form y = ax2 + bx + c
Latin:
quadrāticus
— of a class of polynomial of the form y = ax2 + bx + c
Malay:
kuadratik
— of a class of polynomial of the form y = ax2 + bx + c
Polish:
kwadratowy
— of a class of polynomial of the form y = ax2 + bx + c
Portuguese:
quadrático
— of a class of polynomial of the form y = ax2 + bx + c
Russian:
квадра́тный
(kvadrátnyj)
— of a class of polynomial of the form y = ax2 + bx + c
Scottish Gaelic:
ceàrnach
— of a class of polynomial of the form y = ax2 + bx + c
Spanish:
cuadrático
— of a class of polynomial of the form y = ax2 + bx + c
Swedish:
kvadratisk
— of a class of polynomial of the form y = ax2 + bx + c
Swedish:
andragrads-
— of a class of polynomial of the form y = ax2 + bx + c
Swedish:
andragradspolynom
— of a class of polynomial of the form y = ax2 + bx + c
Uzbek:
kvadratik
— of a class of polynomial of the form y = ax2 + bx + c