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Definition of onion powder
onion powder
Plural:onion powders
onion powder Lexical Profile
CEFR
A2
Grade
3
Tier
2
Usage
Top 10k
• noun
1
A culinary seasoning made from commercially dehydrated and finely ground onions.
Example
"She whisked a teaspoon of onion powder into the gravy to give it a richer, more savory flavor."
Synonyms
View all synonyms for onion powderWord Nuance & Usage
Onion powder consists solely of ground, dehydrated onions and should not be confused with onion salt, which is a pre-mixed blend of onion powder and table salt.
Word Origin & Etymology
A descriptive compound of 'onion' (from Latin 'unio', meaning a single large pearl or onion) and 'powder' (from Old French 'poudre', meaning dust). It became a widely used commercial seasoning in the mid-20th century.
Cite this Entry
Wordmom. (2026). Definition of Onion powder. In Wordmom Dictionary. Retrieved Oct 13, 2026, from https://wordmom.com/dictionary/onion powder