Synonyms and Antonyms for d-region

1. D region (n.)

the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves

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5. region (n.)

a knowledge domain that you are interested in or are communicating about

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6. region (n.)

the approximate amount of something (usually used prepositionally as in `in the region of')

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7. d (adj.)

denoting a quantity consisting of 500 items or units

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8. d (n.)

the 4th letter of the Roman alphabet

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9. D (n.)

the cardinal number that is the product of one hundred and five

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10. D (n.)

the 4th letter of the Roman alphabet

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