19-letter words containing n, i, y, h, a, m
- semidetached binary — a pair of stars that are so close together that mass transfer occurs from one to the other
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- sympathetic contact — behavior toward an individual based on the individual's personal makeup rather than on his or her group membership.
- symptomatic anthrax — blackleg.
- 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.
- tetramethyldiarsine — an oily slightly water-soluble poisonous liquid with garlic-like odour. Its derivatives are used as accelerators for rubber
- the eroica symphony — Symphony No. 3 in E flat major by Ludwig van Beethoven
- the high and mighty — people who are considered very important
- to change your mind — If you change your mind, or if someone or something changes your mind, you change a decision you have made or an opinion that you had.
- welsh mountain pony — a small sturdy but graceful breed of pony used mostly for riding, originally from Wales
- wesleyan methodists — a branch of the Methodist Church in its original form
- withdrawal syndrome — a spectrum of physical and behavioral symptoms following cessation from the continuous use of an addictive drug, the character and severity of the symptoms depending upon the particular drug and the daily dose.