porphyroid
porphyroid · porphyroids
A crystalline and schistose rock containing porphyritic crystals of feldsparA crystalline and schistose rock containing porphyritic crystals of feldspar.
Meaning
1 senses(countable, uncountable)A crystalline and schistose rock containing porphyritic crystals of feldspar.
Origin
From porphyry + -oid.From porphyry + -oid.
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: porphyroids| Singular | porphyroid |
|---|---|
| Plural | porphyroids |
regular
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable