| EROTOPHOBIAS | • EROTOPHOBIA n. fear of sex. |
| HOMOEOPATHIC | • homoeopathic adj. Alternative spelling of homeopathic. • homœopathic adj. Obsolete spelling of homeopathic. • HOMOEOPATHIC adj. related to homoeopathy, also HOMEOPATHIC. |
| OOPHORITISES | • OOPHORITIS n. inflammation of the ovaries. |
| ORTHOPTEROID | • orthopteroid n. (Entomology) Any of the insects historically included in the order Orthoptera, including the cockroaches… • ORTHOPTEROID n. a member of the Orthoptera, cockroaches. |
| ORTHOTROPIES | • ORTHOTROPY n. the state of being orthotropic, growing along a vertical axis. |
| PHOTOCOPIERS | • photocopiers n. Plural of photocopier. • PHOTOCOPIER n. a machine for copying. |
| PHOTOIONISED | • photoionised adj. Alternative spelling of photoionized. • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |
| PHOTOIONISES | • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |
| PHOTOIONIZED | • photoionized v. Simple past tense and past participle of photoionize. • photoionized adj. Subject to, or produced by photoionization. • PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE. |
| PHOTOIONIZES | • photoionizes v. Third-person singular simple present indicative form of photoionize. • PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE. |
| PHOTOOXIDISE | • PHOTOOXIDISE v. to undergo photooxidation, also PHOTOOXIDIZE. |
| PHOTOOXIDIZE | • photooxidize v. To oxidize photochemically. • PHOTOOXIDIZE v. to undergo photooxidation, also PHOTOOXIDISE. |
| PHOTOPERIODS | • photoperiods n. Plural of photoperiod. • PHOTOPERIOD n. the period during every 24 hours when an organism is exposed to daylight. |
| PHOTOPHONIES | • PHOTOPHONY n. the art or practice of using the photophone. |
| PHOTOTROPIES | • PHOTOTROPY n. change of colour due to wavelength of incident light. |
| TROPHOBIOSES | • trophobioses n. Plural of trophobiosis. • TROPHOBIOSIS n. exchange of nutriment in symbiotic relationship. |
| TROPHOLOGIES | • TROPHOLOGY n. the study of nutrition. |
| TROPHOZOITES | • trophozoites n. Plural of trophozoite. • TROPHOZOITE n. in Protozoa, the trophic phase of an adult. |