| BETROTHING | • betrothing v. Present participle of betroth. • BETROTH v. to engage to marry. |
| OUTBITCHING | • outbitching v. Present participle of outbitch. • OUTBITCH v. to surpass in bitching, complaining. |
| BUTTONHOLING | • buttonholing v. Present participle of buttonhole. • buttonholing n. The act of detaining someone in conversation against his or her will. • BUTTONHOLE v. to detain in talk, also BUTTONHOLD. |
| OUTBREATHING | • outbreathing v. Present participle of outbreathe. • outbreathing n. A breathing out; an exhalation. • OUTBREATHE v. to breathe forth. |
| OUTTHROBBING | • outthrobbing v. Present participle of outthrob. • OUTTHROB v. to surpass in throbbing. |
| BUTTONHOLDING | • BUTTONHOLD v. to detain in talk, also BUTTONHOLE. |
| BUTTONHOOKING | • buttonhooking v. Present participle of buttonhook. • BUTTONHOOK v. to make a kind of offensive play in American football. |
| TOOTHBRUSHING | • toothbrushing v. Present participle of toothbrush. • toothbrushing n. An act of brushing the teeth. • TOOTHBRUSHING n. the action of using a toothbrush to clean teeth. |
| ETHNOBIOLOGIST | • ethnobiologist n. A biologist whose speciality is ethnobiology. |
| PHOTOBIOLOGIST | • photobiologist n. A biologist whose speciality is photobiology. • PHOTOBIOLOGIST n. one who studies photobiology. |
| TOOTHBRUSHINGS | • toothbrushings n. Plural of toothbrushing. • TOOTHBRUSHING n. the action of using a toothbrush to clean teeth. |
| BIOSTRATIGRAPHY | • biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain. |
| BIOTECHNOLOGIST | • biotechnologist n. A technologist who works in the field of biotechnology. • BIOTECHNOLOGIST n. one who studies biotechnology. |
| ETHNOBIOLOGISTS | • ethnobiologists n. Plural of ethnobiologist. |
| PHOTOBIOLOGISTS | • photobiologists n. Plural of photobiologist. • PHOTOBIOLOGIST n. one who studies photobiology. |
| TROUBLESHOOTING | • troubleshooting n. The identification and resolution of problems, especially problems of a technical nature. • troubleshooting v. Present participle of troubleshoot. • TROUBLESHOOT v. to solve problems. |