| HEPTACHLORS | • heptachlors n. Plural of heptachlor. • HEPTACHLOR n. a very toxic pesticide. |
| HEPTACHORDS | • heptachords n. Plural of heptachord. • HEPTACHORD n. a system of seven sounds. |
| HEPTAGYNOUS | • heptagynous adj. (Botany) Having seven pistils. • HEPTAGYNOUS adj. belonging to the Heptagynia, having seven styles. |
| HEPTAHEDRAL | • heptahedral adj. Having seven plane surfaces. • HEPTAHEDRAL adj. like a heptahedron. |
| HEPTAHEDRON | • heptahedron n. (Mathematics) any polyhedron having seven faces. • HEPTAHEDRON n. a solid figure having several plane faces. |
| HEPTAMEROUS | • heptamerous adj. (Botany) Comprising seven parts or members, as with seven petals on a flower. • HEPTAMEROUS adj. having seven divisions; having the parts of flower in sevens. |
| HEPTAMETERS | • heptameters n. Plural of heptameter. • HEPTAMETER n. a verse line of seven feet. |
| HEPTANDROUS | • heptandrous adj. (Botany) Having seven stamens. • HEPTANDROUS adj. having seven stamens. |
| HEPTANGULAR | • heptangular adj. Having seven angles. • HEPTANGULAR adj. having seven angles. |
| HEPTAPODIES | • heptapodies n. Plural of heptapody. • HEPTAPODY n. the state of having seven feet. |
| HEPTARCHIES | • heptarchies n. Plural of heptarchy. • HEPTARCHY n. government by seven persons; a group of seven allied but independent kingdoms, esp. of Anglo-Saxon England. |
| HEPTARCHIST | • heptarchist n. A ruler of one division of a heptarchy. • HEPTARCHIST n. a ruler in a heptarchy. |
| HEPTASTICHS | • heptastichs n. Plural of heptastich. • HEPTASTICH n. a poem, strophe, or stanza that consists of seven lines. |
| HEPTATHLETE | • heptathlete n. (Athletics) An athlete who competes in the heptathlon. • HEPTATHLETE n. an athlete who takes part in heptathlons. |
| HEPTATHLONS | • heptathlons n. Plural of heptathlon. • HEPTATHLON n. an athletic competition with seven events. |
| HEPTAVALENT | • heptavalent adj. (Chemistry) Having an atomic valence of 7. • heptavalent adj. (Medicine) Having a vaccine valence of 7. • HEPTAVALENT adj. having a valency of seven, also SEPTAVALENT, SEPTIVALENT. |