| MOTORBOATS | • motorboats n. Plural of motorboat. • motorboats v. Third-person singular simple present indicative form of motorboat. • motor␣boats n. Plural of motor boat. |
| SMOOTHBORE | • smoothbore adj. (Firearms) having a bore with a smooth interior, ie. one that has not been rifled. • smoothbore n. (Firearms) a cannon, gun or other firearm that has an unrifled barrel. • SMOOTHBORE adj. having a bore of perfectly smooth surface, not rifled. |
| PROMPTBOOKS | • promptbooks n. Plural of promptbook. • PROMPTBOOK n. a copy of a play for a prompter. |
| SMOOTHBORED | • smoothbored adj. (Firearms) Synonym of smoothbore. • SMOOTHBORED adj. of a gun, having a smooth bore, not rifled. |
| SMOOTHBORES | • smoothbores n. Plural of smoothbore. • SMOOTHBORE n. a gun with a smooth bore. |
| BIOASTRONOMY | • bioastronomy n. Synonym of astrobiology. • BIOASTRONOMY n. the branch of biology which deals with the study or the discovery of life forms on other planets or in space. |
| MOTORBOATERS | • motorboaters n. Plural of motorboater. • MOTORBOATER n. one who drives a motorboat. |
| PHOTOBOMBERS | • photobombers n. Plural of photobomber. |
| MOTORBOATINGS | • MOTORBOATING n. travelling by motorboat. |
| MOUTHBROODERS | • mouthbrooders n. Plural of mouthbrooder. • MOUTHBROODER n. a cichlid fish that carries its young in its mouth for protection, also MOUTHBREEDER. |
| BIOASTRONOMIES | • BIOASTRONOMY n. the branch of biology which deals with the study or the discovery of life forms on other planets or in space. |
| MICROBIOLOGIST | • microbiologist n. A scientist whose speciality is microbiology. • MICROBIOLOGIST n. one who studies microbiology. |
| MICROBIOLOGISTS | • microbiologists n. Plural of microbiologist. • MICROBIOLOGIST n. one who studies microbiology. |
| THROMBOEMBOLISM | • thromboembolism n. (Medicine) An embolism caused by a blood clot carried in the bloodstream from its place of origin. • THROMBOEMBOLISM n. the blocking of a blood vessel by a particle that has broken away from a blood clot at its site of formation. |