Stemware meaning
(uncountable) Drinking glasses that have a stem, such as wine or champagne glasses.
Is glassware one word or two?
What type of word is 'glassware'? Glassware is a noun - Word Type.
Is wine glass a compound word?
In that regard, it's necessary to avoid the over-simplification of saying that two single-syllable words are written together as one word. Thus, tablecloth but table mat, wine glass but wineglassful or key ring but keyholder.