hy·a·loid 
(hīə-loid′)
(hīə-loid′)adj.
Glassy or transparent in appearance; hyaline.
[Greek hualoeidēs : hualos, glass + -oeidēs, -oid.]
- petrifaction
- petrification
- Petrified Forest
- petrify
- Petrine
- petro-
- petrochemical
- petrochemistry
- petrodollars
- petrogenesis
- petrogenetic
- petroglyph
- petroglyphic
- Petrograd
- petrographer
- petrographic
- petrographical
- petrographically
- petrography
- petrol
- petrolatum
- petroleum
- petroleum coke
- petroleum ether
- petroleum jelly