in·ter·tid·al 
(ĭn′tər-tīdl)
(ĭn′tər-tīdl)adj.
Of or being the region between the high tide mark and the low tide mark.
in′ter·tidal·ly adv.
- ophiuroid
- ophthalm-
- ophthalm-
- ophthalmia
- ophthalmic
- ophthalmitis
- ophthalmo-
- ophthalmologic
- ophthalmological
- ophthalmologically
- ophthalmologist
- ophthalmology
- ophthalmoscope
- ophthalmoscopic
- ophthalmoscopical
- ophthalmoscopy
- -opia
- opiate
- opine
- opinion
- opinionate
- opinionated
- opinionatedly
- opinionative
- opinionatively