We found 3 dictionaries that define the word grape sugars:

General (2 matching dictionaries)

1. grape sugars: Merriam-Webster
2. grape sugars: Collins English Dictionary

Medicine (1 matching dictionary)

3. grape sugars: Merriam-Webster Medical Dictionary

(Note: See grape_sugar as well.)

Definitions from Wiktionary (grape sugar) ▸ noun:  (archaic) Glucose. ▸ Also see grape_sugar ▸ Words similar to grape sugars ▸ Usage examples for grape sugars ▸ Idioms related to grape sugars ▸ Wikipedia articles (New!) ▸ Words that often appear near grape sugars ▸ Rhymes of grape sugars ▸ Invented words related to grape sugars