19-letter words containing c, h, e, y, n, s
- synchronous machine — an alternating-current machine in which the average speed of normal operation is exactly proportional to the frequency of the system to which it is connected.
- synthetic detergent — any synthetic substance, other than soap, that is an effective cleanser and functions equally well as a surface-active agent in hard or soft water.
- the eroica symphony — Symphony No. 3 in E flat major by Ludwig van Beethoven
- trumpet honeysuckle — an American honeysuckle, Lonicera sempervirens, having spikes of large, tubular flowers, deep-red outside and yellow within.