placental

P3L1A1C3E1N1T1A1L1

adjective

Of or pertaining to the placenta.

Similar
transplacentalplacental mammaleutherianeutherian mammal
Opposite
aplacental
OriginLatin placentalis →
Less commonFirst used 18th c.Scrabble 13
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Meanings

adjectiveplacental (not comparable)
  1. not comparableOf or pertaining to the placenta.First known use 18th c.
  2. not comparablebiologyPertaining to the Placentalia, comprising of mammals that are not marsupials or monotremes.First known use 19th c.

    We do not know exactly how many placental lineages survived to leave descendants; most estimates are around ten.

    2022, Thomas Halliday, Otherlands, Penguin, published 2023, page 103
nounplacental (plural placentals)

plural placentals

  1. A mammal of the infraclass Placentalia.

Synonyms & antonyms

adjectivepertaining to or having or occurring by means of a placenta

Similar
transplacental
Opposite
aplacental

nounmammals having a placenta; all mammals except monotremes and marsupials

Similar
placental mammaleutherianeutherian mammal
Broader
mammalmammalian
Also see
eutherianplacentiferoustransplacental

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latinplacentalis
  2. Englishplacental

From post-classical Latin placentalis, corresponding to placenta + -al.

More words from Latin

Full word history & related roots →

Translations

Catalan placentari
  • placentaripertaining to placenta
Czech placentární, placentální
  • placentárnípertaining to placenta
  • placentálnípertaining to placenta
French placentaire, placentaire
  • placentairepertaining to placenta
  • placentairemember of Placentalia
Italian placentare, placentario
  • placentarepertaining to placenta
  • placentariopertaining to placenta
Japanese 有胎盤類
  • 有胎盤類 (yūtaibanrui)member of Placentalia
Polish łożyskowy, łożyskowiec
  • łożyskowypertaining to placenta
  • łożyskowiecmember of Placentalia
Portuguese placentário
  • placentáriopertaining to placenta
Romanian placentar, placentar
  • placentarpertaining to placenta
  • placentarmember of Placentalia
Spanish placentario
  • placentariopertaining to placenta
Swedish moderkaksdjur, placentadäggdjur
  • moderkaksdjurmember of Placentalia
  • placentadäggdjurmember of Placentalia

Rhymes & wordplay

Anagrams

panlectal
Cite this entry
APA

placental. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/placental

MLA

“placental.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/placental. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “placental,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/placental.

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