| ATMOSPHERES | • atmospheres n. Plural of atmosphere. • ATMOSPHERE n. the body of air and gas which surrounds the earth. |
| CHROMATISTS | • CHROMATIST n. one who studies chromatics, the science of color. |
| HOUSEMASTER | • housemaster n. A teacher who is in charge of a house at a boarding school. • house␣master n. A teacher in charge of a boarding house at a boarding school. • house␣master n. A teacher in charge of a sports house at a school. |
| HUMORALISTS | • humoralists n. Plural of humoralist. • HUMORALIST n. one who favors the humoral pathology or believes in humoralism. |
| ISOTHERMALS | • isothermals n. Plural of isothermal. • ISOTHERMAL n. a line on a map connecting points of equal average temperature, also ISOTHERM. |
| MASTERHOODS | • MASTERHOOD n. the state of being a master. |
| MATRIOSHKAS | • matrioshkas n. Plural of matrioshka. • MATRIOSHKA n. (Russian) a Russian doll, also MATROYSHKA, MATRYOSHKA. |
| MATRONSHIPS | • matronships n. Plural of matronship. • MATRONSHIP n. the state of being a matron. |
| MATROYSHKAS | • MATROYSHKA n. (Russian) a hollow wooden doll, also MATRIOSHKA, MATRYOSHKA. |
| MATRYOSHKAS | • matryoshkas n. Plural of matryoshka. • MATRYOSHKA n. (Russian) a hollow wooden doll, also MATRIOSHKA, MATROYSHKA. |
| METACHROSES | • METACHROSIS n. the ability of animals to change colour. |
| METACHROSIS | • metachrosis n. (Zoology) The ability to change colour by the expansion and contraction of chromatophores. • METACHROSIS n. the ability of animals to change colour. |
| MONARCHISTS | • monarchists n. Plural of monarchist. • MONARCHIST n. a supporter of monarchism. |
| SMARTMOUTHS | • smartmouths v. Third-person singular simple present indicative form of smartmouth. • SMARTMOUTH n. a clever or sarcastic person. |
| SMARTPHONES | • smartphones n. Plural of smartphone. • smart␣phones n. Plural of smart phone. • SMARTPHONE n. a portable device combining a mobile phone and a computer. |
| STASIMORPHY | • stasimorphy n. Any deviation from the normal form of a bodily organ due to arrested development. • STASIMORPHY n. structural modification by arrested development. |
| THERMOSTATS | • thermostats n. Plural of thermostat. • THERMOSTAT v. to provide with or control the temperature of by a thermostat, a device for keeping temperature stead. |
| THIMEROSALS | • THIMEROSAL n. a cream-coloured crystalline water-soluble powder, used on the skin to treat minor abrasions. |