| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| a scrap or morsel of food left at a meal. |
| OHMS | |
| —abbreviation for | |
| On Her (or His) Majesty's Service | |
| ohm (ōm) Pronunciation Key
The SI derived unit used to measure the electrical resistance of a material or an electrical device. One ohm is equal to the resistance of a conductor through which a current of one ampere flows when a potential difference of one volt is applied to it. |
| Ohm, Georg Simon 1789-1854.
German physicist who discovered the relationship between voltage, current, and resistance in an electrical circuit, now known as Ohm's law. The ohm unit of electrical resistance is named for him. |
The unit of electrical resistance, named after the nineteenth-century German physicist Georg Ohm.
| OHMS On Her (or His) Majesty's Service |