13-letter words containing ys
- spoils system — the system or practice in which public offices with their emoluments and advantages are at the disposal of the victorious party for its own purposes.
- spondylolysis — the destruction of the vertebra
- stereo system — a system for recording, reproducing, or broadcasting sound using two or more separate microphones to feed two or more loudspeakers through separate channels in order to give a spatial effect to the sound
- storm trysail — a small fore-and-aft sail, triangular or square, set on the mainmast of a sailing vessel in foul weather to help keep her head to the wind
- superphysical — above or beyond what is physical; hyperphysical.
- sweet alyssum — a garden plant, Lobularia maritima, of the mustard family, having narrow leaves and small, white or violet flowers.
- symphysiotomy — a surgical procedure to facilitate labour
- systematician — a person who adheres to, or creates, a system
- systematology — the science of systems or their formation.
- systemization — systematize.
- t-stop system — a system of stops calibrated by T numbers.
- thomas tallys — Thomas, Tallis, Thomas.
- thousand days — the presidential administration of John F. Kennedy, which lasted 1037 days (January 20, 1961, to November 22, 1963).
- thysanopteran — Also, thysanopterous. belonging or pertaining to the insect order Thysanoptera, comprising the thrips.
- thysanopteron — thysanopteran.
- ultraphysical — extremely physical
- unix system v — System V
- weapon system — a weapon and the components necessary to its proper function, such as targeting and guidance devices
- zoophysiology — the physiology of animals as opposed to humans
- zygapophyseal — one of the four processes of a vertebra, occurring in pairs that interlock each vertebra with the vertebrae above and below.