Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

hoary alyssum

noun

Definition of hoary alyssum 

: a tall leafy perennial European plant (Berteroa incana) with gray-green foliage, entire leaves, and pubescent pods that is naturalized in North America and is sometimes troublesome as a weed

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!

Learn More about hoary alyssum

Share hoary alyssum

Resources for hoary alyssum

Cite Time Traveler Time Traveler! Explore the year a word first appeared

Dictionary Entries near hoary alyssum

hoarstone

hoary

hoary alder

hoary alyssum

hoary bat

hoary cinquefoil

hoary cress

Statistics for hoary alyssum

Look-up Popularity

Comments on hoary alyssum

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

Show Comments  Hide Comments 

WORD OF THE DAY

nary

not any or not one

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

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!

Words at Play

Ask the Editors

Word Games