| HERMS | • herms n. Plural of herm. • HERM n. a type of statue, also HERMA. |
| THERMS | • therms n. Plural of therm. • THERM n. a unit of quantity of heat equal to 100,000 British thermal units, also THERME. |
| BIOHERMS | • bioherms n. Plural of bioherm. • BIOHERM n. a mound of material laid down by sedentary marine organisms, esp. a coral reef. |
| GEOTHERMS | • geotherms n. Plural of geotherm. • GEOTHERM n. a line on the earth connecting points of equal temperature. |
| ISOTHERMS | • isotherms n. Plural of isotherm. • ISOTHERM n. a line on a map connecting points of equal average temperature, also ISOTHERMAL. |
| ECTOTHERMS | • ectotherms n. Plural of ectotherm. • ECTOTHERM n. a cold-blooded animal. |
| ENDOTHERMS | • endotherms n. Plural of endotherm. • ENDOTHERM n. a warm-blooded animal. |
| EURYTHERMS | • eurytherms n. Plural of eurytherm. • EURYTHERM n. an organism which tolerates a wide range of temperatures. |
| HOMEOTHERMS | • homeotherms n. Plural of homeotherm. • HOMEOTHERM n. an organism that maintains the same temperature. |
| STENOTHERMS | • stenotherms n. Plural of stenotherm. • STENOTHERM n. an organism capable of surviving over only a narrow range of temperatures. |
| HOMOEOTHERMS | • homoeotherms n. Plural of homoeotherm. • HOMOEOTHERM n. an animal or organism that keeps its body at an almost constant temperature, also HOMEOTHERM, HOMOIOTHERM. |
| HOMOIOTHERMS | • homoiotherms n. Plural of homoiotherm. • HOMOIOTHERM n. a warm-blooded animal, also HOMEOTHERM, HOMOEOTHERM. |
| ISOGEOTHERMS | • isogeotherms n. Plural of isogeotherm. • ISOGEOTHERM n. a line connecting points of equal subterranean temperature, also ISOGEOTHERMAL, ISOGEOTHERMIC. |
| POIKILOTHERMS | • poikilotherms n. Plural of poikilotherm. • POIKILOTHERM n. an organism that takes on the temperature of its surroundings. |