ROM 
(rŏm)
(rŏm)n.
Computers
Computers
Digital memory hardware that allows fast access to permanently stored data but prevents addition to or modification of the data.
[r(ead-)o(nly) m(emory).]
- ophthalmologic
- ophthalmological
- ophthalmologically
- ophthalmologist
- ophthalmology
- ophthalmoscope
- ophthalmoscopic
- ophthalmoscopical
- ophthalmoscopy
- -opia
- opiate
- opine
- opinion
- opinionate
- opinionated
- opinionatedly
- opinionative
- opinionatively
- opioid
- opisthobranch
- opisthognathism
- opisthognathous
- opium
- opium poppy
- Oporto