incertae sedis

adverb
in·​cer·​tae se·​dis | \ in-ˈsər-tē-ˈsē-dəs How to pronounce incertae sedis (audio) \

Medical Definition of incertae sedis

: in an uncertain position : without assurance of relationship used of taxathe enigmatic fossil arthropods were placed incertae sedis among the Myriopoda

Learn More about incertae sedis

Cite this Entry

“Incertae sedis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/incertae%20sedis. Accessed 13 Aug. 2020.

Comments on incertae sedis

What made you want to look up incertae sedis? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!