| ACRODROMOUS | • acrodromous adj. (Botany) Alternative form of acrodrome. • ACRODROMOUS adj. of the veins in a leaf, running parallel to the edges of the leaf and fusing at the tip, also ACRODROME. |
| ERIOPHOROUS | • ERIOPHOROUS adj. very cottony. |
| FLUOROPHORE | • fluorophore n. (Biochemistry) A molecule or functional group which is capable of fluorescence. • FLUOROPHORE n. a chemical group responsible for fluorescence. |
| HORRISONOUS | • horrisonous adj. (Obsolete) Sounding dreadfully; uttering a terrible sound. • HORRISONOUS adj. (archaic) dreadful-sounding, also HORRISONANT. |
| MICROPOROUS | • microporous adj. (Of a material) Having micropores of a size less than 2 nanometres. • MICROPOROUS adj. of or like a micropore. |
| ODORIFEROUS | • odoriferous adj. Having an odor or fragrance. • ODORIFEROUS adj. giving off an odour; morally offensive, also ODIFEROUS. |
| OPPROBRIOUS | • opprobrious adj. Causing opprobrium; offensive and shameful. • OPPROBRIOUS adj. expressing contemptuous reproach; bringing disgrace. |
| OUROBOROSES | • ouroboroses n. Plural of ouroboros. • OUROBOROS n. (Greek) a snake eating its own tail, symbolizing totality or completion, also UROBOROS. |
| OUTDOORSIER | • outdoorsier adj. Comparative form of outdoorsy: more outdoorsy. • OUTDOORSY adj. (colloq.) of an outdoors inclination. |
| OVERCOLOURS | • overcolours v. Third-person singular simple present indicative form of overcolour. • OVERCOLOUR v. to colour to excess, also OVERCOLOR. |
| OVERHONOURS | • OVERHONOUR v. to honour excessively, also OVERHONOR. |
| PROLOCUTORS | • prolocutors n. Plural of prolocutor. • PROLOCUTOR n. a presiding officer; a chairman, esp. of the lower house of Convocation. |
| PROSAUROPOD | • prosauropod n. Any member of the Prosauropoda, a group of early herbivorous dinosaurs with a long neck and small head… • PROSAUROPOD n. a reptile-like dinosaur of the division Prosauropoda which lived in the Triassic period. |
| PYROPHOROUS | • pyrophorous adj. (Archaic) light-producing. • pyrophorous adj. (Archaic) of or relating to pyrophorus. • PYROPHOROUS adj. spontaneously igniting in air, also PYROPHORIC. |