echidna

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echidna¹

  • /əˈkɪdnə/

Where it comes from

Coined in scientific literature around 1811. Likely from Echidna, a monster in Greek mythology, "a beautiful woman in the upper part of her body; but instead of legs and feet, she had from the waist downward, the form of a serpent", in which case the animal was named for its mixed features (early naturalists doubted whether it was a mammal or amphibian).

Alternatively, from Ancient Greek ἔχιδνα (ékhidna, “snake, viper”) via Latin echidna. Compare ἐχῖνος (ekhînos, “hedgehog, etc.”). However, this sense is problematic (unless it is a reference to the ant-eating tongue). The name perhaps belongs to Latin echinus (“sea urchin, hedgehog”) from the aforementioned Ancient Greek term's alternate sense of "sea-urchin" (also "sharp points"), which Watkins explains as "snake-eater", from ἔχις (ékhis, “snake”), though it may actually be from Proto-Indo-European *h₁éǵʰis (“hedgehog, hedgehog-like animals”). The 1810 Encyclopaedia Britannica deduces thus the animal's alternative name as "porcupine ant-eater". Ultimately, the etymology may be from a synthesis of all the roots above. (From OED.)

noun echidnas · echidnae

  1. Any of the small spined monotremes in the family Tachyglossidae, the four extant species of which are found in Australia and southern New Guinea.

    Similar: spiny anteater, bunning, tachyglossid

Echidna²

  • /ɪˈkɪd.nə/
  • /əˈkɪd.nə/

Where it comes from

From Ancient Greek Ἔχιδνα (Ékhidna, “Echidna”), from ἔχιδνα (ékhidna, “viper”).

proper noun

  1. Greek A female monster who, along with Typhon, mothered the vast majority of the famous monsters and creatures of Greek mythology. Horrible, hideous, and of hellish race, / Borne of the brooding of Echidna base, / Or other like infernall furies kinde […].

Translations

Every language

noun any of the four species of small spined monotremes

Españolequidna
한국어가시두더지 gasidudeoji, 바늘두더지 baneuldudeoji
日本語針土竜 harimogura, エキドナ ekidona
中文針鼴 /针鼹 zhēnyǎn, 食蟻蝟 /食蚁猬 shíyǐwèi, 刺食蟻獸 /刺食蚁兽 cìshíyǐshòu
हिन्दीएकिडना ekiḍnā
Kiswahilimhanganungu, ekidna
Portuguêsequidna
Françaiséchidné
DeutschAmeisenigel, Schnabeligel, Echidna
Italianoechidna
Ελληνικάέχιδνα échidna, αγκαθωτός μυρμηγκοφάγος agkathotós myrmigkofágos
Românăechidnă, echidneu
Русскийехи́дна jexídna
Tiếng Việtthú lông nhím
العربيةإِيكِيدْنَا ʔikīdnā, نَضْناض naḍnāḍ
עבריתהנמלים

name mythology

FrançaisÉchidna
РусскийЭхидна Exidna

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Cite this
MLA

"echidna." Wiktionary, via Micwyn, micwyn.com/word/echidna. Accessed 7 Nov. 2026.

APA

echidna. (n.d.). In Wiktionary, via Micwyn. Retrieved November 7, 2026, from https://micwyn.com/word/echidna

Chicago

"echidna." Wiktionary, via Micwyn. Accessed November 7, 2026. https://micwyn.com/word/echidna.

BibTeX
@misc{echidna_2026,
  title = {echidna},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/echidna},
  urldate = {2026-11-07}
}