| ARCHESPORIUM | • archesporium n. (Botany) Any of the cells of the sporangium that give rise to spores. • ARCHESPORIUM n. a primitive cell or group of cells from which a mother cell develops. |
| CHIAROSCURISM | • CHIAROSCURISM n. the practice of chiaroscuro. |
| CHIAROSCURISMS | • CHIAROSCURISM n. the practice of chiaroscuro. |
| CHONDROCRANIUMS | • CHONDROCRANIUM n. the cartilaginous parts of an embryonic cranium. |
| CHORUSMASTER | • chorusmaster n. Choirmaster. • CHORUSMASTER n. the conductor of a choir. |
| CHORUSMASTERS | • chorusmasters n. Plural of chorusmaster. • CHORUSMASTER n. the conductor of a choir. |
| CHROMATOPHOROUS | • CHROMATOPHOROUS adj. of or like a chromatophore, a pigment-bearing cell. |
| COUNTERCHARMS | • countercharms n. Plural of countercharm. • COUNTERCHARM v. to destroy or dissolve the effects of (another charm). |
| COUNTERMARCHES | • countermarches n. Plural of countermarch. • countermarches v. Third-person singular simple present indicative form of countermarch. • COUNTERMARCH v. to march or cause to march back or in a direction opposite to a former one. |
| HONORARIUMS | • honorariums n. Plural of honorarium. • HONORARIUM n. a voluntary fee paid esp. to a professional person for their services. |
| MORRHUAS | • MORRHUA n. an old name for the cod. |
| MOUTHBREATHERS | • mouthbreathers n. Plural of mouthbreather. • mouth-breathers n. Plural of mouth-breather an alternative spelling of mouth breather. • mouth␣breathers n. Plural of mouth breather. |
| PARAMORPHOUS | • paramorphous adj. (Mineralogy) Relating to, or exhibiting, paramorphism. • PARAMORPHOUS adj. of or like a paramorph. |
| RADIOTHORIUMS | • RADIOTHORIUM n. a radioactive isotope of thorium with the mass number 228. |
| RHUMBATRONS | • RHUMBATRON n. a cavity resonator. |
| ROUTEMARCHES | • routemarches n. Plural of routemarch. • routemarches v. Third-person singular simple present indicative form of routemarch. • route-marches n. Plural of route-march. |
| TAUROMORPHOUS | • tauromorphous adj. Bull-shaped. • TAUROMORPHOUS adj. bull-shaped. |
| THERMOREGULATES | • thermoregulates v. Third-person singular simple present indicative form of thermoregulate. • THERMOREGULATE v. to regulate by means of heat. |
| ULTRAMARATHONS | • ultramarathons n. Plural of ultramarathon. • ULTRAMARATHON n. a footrace longer than a marathon. |