Angiospermae

plural noun
An·​gio·​sper·​mae

Definition of Angiospermae

: a class of Pteropsida or in some classifications a subdivision of Spermatophyta comprising seed plants (as orchids or roses) that produce seeds enclosed in an ovary, including the vast majority of seed plants, and being divided into the subclasses Dicotyledoneae and Monocotyledoneae — compare filicineae, gymnospermae

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of Angiospermae

1831, in the meaning defined above

History and Etymology for Angiospermae

New Latin, from angi- + -spermae

Keep scrolling for more

Learn More About Angiospermae

Time Traveler for Angiospermae

Time Traveler

The first known use of Angiospermae was in 1831

See more words from the same year

Dictionary Entries Near Angiospermae

angiosperm

Angiospermae

angiotensin

See More Nearby Entries 

Statistics for Angiospermae

Cite this Entry

“Angiospermae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Angiospermae. Accessed 19 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

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!