subarachnoid

S1U1B3A1R1A1C3H4N1O1I1D2
/ˌsʌb.əˈɹæk.nɔɪd/

adjective

Located or occurring below the arachnoid mater, often specifically between the arachnoid membrane and the pia mater.

UncommonScrabble 20

Meanings

adjectivesubarachnoid (not comparable)
  1. not comparablerelationalanatomyLocated or occurring below the arachnoid mater, often specifically between the arachnoid membrane and the pia mater.

    After an internal examination he found that "the cause of death was craniocerebral injury with subarachnoid hemorrhage […]."

    1988 May 19, Jack Clark, “Touch of Death”, in Chicago Reader, volume 17, number 31, archived from the original on 23 Jul 2021

    Synonyms: subarachnoidal

nounsubarachnoid (plural subarachnoids)

plural subarachnoids

  1. abbreviationellipsisEllipsis of subarachnoid space.

Synonyms & antonyms

adjectiveLocated or occurring below the arachnoid mater, often specifically between the arachnoid membrane and the pia mater.

Origin

  1. Latinsub
  2. Latinsub-
  3. Englishsub-
  4. Englisharachnoid
  5. Englishsubarachnoid

From sub- + arachnoid.

Full word history & related roots →

Translations

Chinese Mandarin 蛛網膜下 /蛛网膜下
  • 蛛網膜下 /蛛网膜下 (zhūwǎngmóxià)below the arachnoid mater
Czech subarachnoidální
  • subarachnoidálníbelow the arachnoid mater
Finnish lukinkalvonalainen
  • lukinkalvonalainenbelow the arachnoid mater
Polish podpajęczynówkowy
  • podpajęczynówkowybelow the arachnoid mater
Spanish subaracnoideo
  • subaracnoideobelow the arachnoid mater

Rhymes & wordplay

Rhymes with subarachnoid

All rhymes →
Cite this entry
APA

subarachnoid. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/subarachnoid

MLA

“subarachnoid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subarachnoid. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “subarachnoid,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/subarachnoid.

Source: subarachnoid on Wiktionary, CC BY-SA 4.0.