Matching Words
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Heliopauses
- noun - the boundary marking the edge of the sun's influence; the boundary (roughly 100 AU from the sun) between the interplanetary medium and the interstellar medium; where the solar wind from the sun and the radiation from other stars meet
Heliophilas
- noun - any of various South African herbs and subshrubs cultivated for long showy racemes of bright blue flowers with white eyes
Heliosphere
- noun - the region inside the heliopause containing the sun and solar system
Heliotroper
- - The person at a geodetic station who has charge of the heliotrope.
Heliotropes
- noun - A plant with purple orblue flowers, used in perfume.
- green chalcedony with red spots that resemble blood
Heliotropic
- - Manifesting heliotropism; turning toward the sun.
Helix Angle
- noun - the constant angle at which a helix cuts the elements of a cylinder or cone
Hell To Pay
- noun - dire consequences; "when the pig ran away there was hell to pay"
Hellbenders
- noun - large salamander of North American rivers and streams
Helleborein
- - A poisonous glucoside accompanying helleborin in several species of hellebore, and extracted as a white crystalline substance with a bittersweet taste. It has a strong action on the heart, resembling digitalin.