| BOOMTOWNS | • boomtowns n. Plural of boomtown. • boom␣towns n. Plural of boom town. • BOOMTOWN n. a town which has expanded rapidly and prospered. |
| COSMOTRON | • cosmotron n. (Physics) A proton synchrotron. • COSMOTRON n. a large synchrotron used for accelerating protons to high energies. |
| MONOGLOTS | • monoglots n. Plural of monoglot. • MONOGLOT n. a person speaking or writing only one language. |
| MONOSTOME | • monostome n. A nematode of the genus Monostoma. • MONOSTOME adj. having only one mouth, pore or similar opening, also MONOSTOMOUS. |
| MONOTONES | • monotones n. Plural of monotone. • MONOTONE v. to sing or speak in a single unvaried tone or pitch. |
| MOONBOOTS | • moonboots n. Plural of moonboot. • moon␣boots n. Plural of moon boot. • MOONBOOTS n. thickly padded boots having a fabric outer covering. |
| MOONPORTS | • moonports n. Plural of moonport. • MOONPORT n. a facility for launching spacecraft to the moon. |
| MOONSHOTS | • moonshots n. Plural of moonshot. • moon␣shots n. Plural of moon shot. • MOONSHOT n. the launching of a spacecraft to the moon. |
| MOONSTONE | • moonstone n. (Mineralogy) A translucent gemstone, an orthoclase feldspar, that has a pearly lustre. • MOONSTONE n. a nearly pellucid variety of feldspar, showing pearly or opaline reflections from within. |
| MOONWORTS | • moonworts n. Plural of moonwort. • MOONWORT n. the plant honesty (from its silvery septum). |
| ODONTOMAS | • odontomas n. Plural of odontoma. • ODONTOMA n. a tooth tumour. |
| TOKONOMAS | • tokonomas n. Plural of tokonoma. • TOKONOMA n. (Japanese) a small alcove in a Japanese house. |
| ZOONOMIST | • zoonomist n. One who studies zoonomy. • ZOONOMIST n. an animal physiologist. |