**Si"nus*oid** (?), n. [*Sinus* + *-oid*.] Geom.

The curve whose ordinates are proportional to the sines of the abscissas, the equation of the curve being *y = a sin x*. It is also called the curve of sines.

© Webster 1913.

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(definition) | by Webster 1913 |
Wed Dec 22 1999 at 3:09:23 |

**Si"nus*oid** (?), n. [*Sinus* + *-oid*.] Geom.

The curve whose ordinates are proportional to the sines of the abscissas, the equation of the curve being *y = a sin x*. It is also called the curve of sines.

© Webster 1913.