Synonyms and Antonyms for heavy-hydrogen

1. heavy hydrogen (n.)

an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)

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2. hydrogen (n.)

a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

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3. heavy (adj.)

of comparatively great physical weight or density

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4. heavy (adj.)

unusually great in degree or quantity or number

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5. heavy (adj.)

of the military or industry; using (or being) the heaviest and most powerful armaments or weapons or equipment

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6. heavy (adj.)

marked by great psychological weight; weighted down especially with sadness or troubles or weariness

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7. heavy (adj.)

usually describes a large person who is fat but has a large frame to carry it

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8. heavy (adj.)

darkened by clouds

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9. heavy (adj.)

(used of soil) compact and fine-grained

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10. heavy (adj.)

sharply inclined

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