| HOLOPHOTE | • holophote n. A lighthouse lamp with lenses or reflectors to collect the rays of light and throw them in a given direction. • HOLOPHOTE n. an apparatus by which all the light from a lighthouse is thrown in the required direction. |
| HOLOPHYTE | • holophyte n. (Biology) Any organism that produces its own food through photosynthesis. • HOLOPHYTE n. a plant maintained entirely by its own organs. |
| HOLOTYPES | • holotypes n. Plural of holotype. • HOLOTYPE n. the original type specimen of an animal or plant. |
| LEPTOPHOS | • leptophos n. An organophosphate formerly used as a pesticide and fungicide. • LEPTOPHOS n. a type of pesticide. |
| LITHOPONE | • lithopone n. A white pigment, a mixture of barium sulfate and zinc sulfide, used in paints and enamels. • LITHOPONE n. a white pigment used in paints, consisting of a mixture of zinc sulphide and barium sulphate. |
| OPHIOLITE | • ophiolite n. (Geology) an assemblage of mafic and ultramafic rock fragments of the ocean lithosphere that has been… • OPHIOLITE n. a slice of oceanic rock and upper mantle that has been thrust over the edge of a continent. |
| PHONOLITE | • phonolite n. (Mineralogy) a light-coloured rock of volcanic origin composed mostly of alkali feldspars. • PHONOLITE n. a fine-grained intermediate igneous rock that rings when struck by a hammer, aka clinkstone. |
| PHOTOCELL | • photocell n. A photoelectric cell. • photo-cell n. Alternative spelling of photocell. • PHOTOCELL n. a photoelectric cell. |
| PHOTOLYSE | • photolyse v. To cause photolysis. • PHOTOLYSE v. to cause photolysis in, also PHOTOLYZE. |
| PHOTOLYZE | • photolyze v. Alternative spelling of photolyse. • PHOTOLYZE v. to cause photolysis in, also PHOTOLYSE. |
| PORTHOLES | • portholes n. Plural of porthole. • PORTHOLE n. a small window in a ship's side. |
| POSTHOLES | • postholes n. Plural of posthole. • postholes v. Third-person singular simple present indicative form of posthole. • POSTHOLE n. a hole dug to hold a fence post. |
| POTHOLDER | • potholder n. An insulated pad used for handling hot cooking utensils. • pot␣holder n. A piece of textile (often quilted) or silicone used to cover the hand when holding hot kitchen cooking… • POTHOLDER n. a piece of material used to protect the hands while lifting a pot from the oven. |
| POTHOLERS | • potholers n. Plural of potholer. • POTHOLER n. someone who explores limestone potholes. |
| TELEPHOTO | • telephoto adj. Of or pertaining to a lens system used to produce an enlarged image of a distant object. • telephoto n. A photograph taken through a telephoto lens. • telephoto v. Synonym of telephotograph. |