Standard Lemma guide

quadratic

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
  • Bulgarian: квадратен тричлен (kvadraten tričlen) — quadratic polynomial
  • Bulgarian: квадратен полином (kvadraten polinom) — quadratic polynomial
  • Bulgarian: квадратична функция (kvadratična funkcija) — quadratic polynomial
  • Bulgarian: квадратно уравнение (kvadratno uravnenie) — quadratic polynomial
  • Chinese Mandarin: 二次式 — quadratic polynomial
  • Finnish: toisen asteen polynomi — quadratic polynomial
  • Japanese: 二次式 — quadratic polynomial
  • Latin: quadrāticum — quadratic polynomial
  • Māori: whārite pūrua — quadratic polynomial
Real reading context

quadratic in complete knowledge articles