| ANTIRRHINUMS | • antirrhinums n. Plural of antirrhinum. • ANTIRRHINUM n. a garden flower, aka snapdragon. |
| BARRAMUNDIES | • BARRAMUNDI n. (Native Australian) an Australian river-fish, also BARRAMUNDA, BURRAMUNDI. |
| ERYTHRONIUMS | • ERYTHRONIUM n. any plant of the bulbous genus Erythronium, with decoratively mottled leaves and cyclamen-like flowers. |
| INTERREGNUMS | • interregnums n. Plural of interregnum. • INTERREGNUM n. (Latin) the time during which a throne is vacant between two reigns. |
| MERCURATIONS | • MERCURATION n. conversion into a mercury compound. |
| MICROSURGEON | • microsurgeon n. (Surgery) A surgeon who specializes in microsurgery. • MICROSURGEON n. a surgeon who specialises in microsurgery. |
| MURMURATIONS | • murmurations n. Plural of murmuration. • MURMURATION n. murmuring. |
| NURSERYMAIDS | • nurserymaids n. Plural of nurserymaid. • NURSERYMAID n. one employed to look after small children. |
| ORGANISTRUMS | • organistrums n. Plural of organistrum. • ORGANISTRUM n. an early musical instrument resembling the hurdy-gurdy. |
| PERICRANIUMS | • pericraniums n. Plural of pericranium. • PERICRANIUM n. a membrane covering the skull. |
| PREMEASURING | • premeasuring v. Present participle of premeasure. • PREMEASURE v. to measure in advance. |
| RECRUITMENTS | • recruitments n. Plural of recruitment. • RECRUITMENT n. the act of recruiting. |
| REQUIREMENTS | • requirements n. Plural of requirement. • REQUIREMENT n. something required. |
| TRANSURANIUM | • transuranium adj. Transuranic. • TRANSURANIUM adj. of an element, having an atomic number greater than that of uranium, also TRANSURANIAN. |
| ULTRAMARINES | • ultramarines n. Plural of ultramarine. • ULTRAMARINE n. a greenish-blue color or pigment. |
| URANOMETRIES | • uranometries n. Plural of uranometry. • URANOMETRY n. a chart or catalogue of fixed stars, esp. of stars visible to the naked eye. |