| COLORFASTNESS | • colorfastness n. The characteristic of being colorfast. • COLORFAST n. having colours that retain their original hue without running or fading, also COLOURFAST. |
| FORTISSISSIMO | • fortississimo adv. (Music) The musical notation indicating that the piece is played louder than fortissimo. • fortississimo n. (Music) The dynamic sign indicating that the piece should be played louder than fortissimo. Abbreviation: fff. • FORTISSISSIMO adv. (Italian) very very loud. |
| FOSSILISATION | • fossilisation n. Britain standard spelling of fossilization. • FOSSILISATION n. the process of fossilising, also FOSSILIZATION. |
| OSSIFICATIONS | • ossifications n. Plural of ossification. • OSSIFICATION n. the natural process of bone formation. |
| OSTEOFIBROSES | • OSTEOFIBROSIS n. fibrosis of the bone. |
| OSTEOFIBROSIS | • osteofibrosis n. Fibrotic osteodystrophy. • OSTEOFIBROSIS n. fibrosis of the bone. |
| PHOTOFISSIONS | • photofissions n. Plural of photofission. • photofissions v. Third-person singular simple present indicative form of photofission. • PHOTOFISSION n. nuclear fission induced by gamma rays. |
| PROFESSORATES | • professorates n. Plural of professorate. • PROFESSORATE n. the office of a professor. |
| PROFESSORIATS | • professoriats n. Plural of professoriat. • PROFESSORIAT n. the body of college and university teachers at an institution or in society, also PROFESSORIATE. |
| PUSSYFOOTINGS | • PUSSYFOOTING n. the act of approaching a topic with great caution. |
| SOOTHFASTNESS | • soothfastness n. (Archaic) truth; honesty; veracity. • SOOTHFASTNESS n. the state of being soothfast. |
| TWOFOLDNESSES | • TWOFOLDNESS n. the state of being twofold. |