| CHRONOSCOPE | • chronoscope n. An optical instrument used to measure very small time intervals with precision. • chronoscope n. (Science fiction) A device for viewing the past or the future. • CHRONOSCOPE n. an instrument for measuring very short time intervals. |
| COLOPHONIES | • colophonies n. Plural of colophony. • COLOPHONY n. rosin. |
| HOMOPHONIES | • homophonies n. Plural of homophony. • HOMOPHONY n. sameness of sound. |
| MONOPHONIES | • MONOPHONY n. a composition for one voice. |
| MONOSTROPHE | • monostrophe n. A metrical composition having a single strophe. • MONOSTROPHE n. a poem in which all the stanzas or strophes are written in the same metre. |
| ORPHEOREONS | • orpheoreons n. Plural of orpheoreon. • ORPHEOREON n. a large lute-like stringed instrument with six to nine metal strings, also ORPHARION. |
| ORTHOPNOEAS | • orthopnoeas n. Plural of orthopnoea. • ORTHOPNOEA n. the ability to breathe in an upright position only. |
| OZONOSPHERE | • ozonosphere n. A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer. • OZONOSPHERE n. the ozone layer. |
| PERSONHOODS | • personhoods n. Plural of personhood. • PERSONHOOD n. being a person. |
| PHONOLOGIES | • phonologies n. Plural of phonology. • PHONOLOGY n. the branch of linguistics that deals with systems of sounds. |
| PHONOPHORES | • phonophores n. Plural of phonophore. • PHONOPHORE n. a sound-conducting apparatus, of various kinds; a device for telephoning and telegraphing simultaneously by the same wire. |
| PHONOSCOPES | • phonoscopes n. Plural of phonoscope. • PHONOSCOPE n. a device that renders visible the vibrations of sound waves. |
| PHOTOIONISE | • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |
| PHOTONOVELS | • photonovels n. Plural of photonovel. • PHOTONOVEL n. a novel in the form of a series of photographs with speech balloons. |
| PHOTOPHONES | • photophones n. Plural of photophone. • PHOTOPHONE n. an apparatus for the production of sound by the action of rays of light. |
| PHOTOSENSOR | • photosensor n. A photodetector. • PHOTOSENSOR n. a detector that is sensitive to electromagnetic radiation. |