16-letter words containing d, i, s, p, r, o
- to dip your toes — If you dip your toes into something or dip your toes into the waters of something, you start doing that thing slowly and carefully, because you are not sure whether it will be successful or whether you will like it.
- top drive system — A top drive system is a system which includes a motor that turns the drill string, used instead of the kelly.
- torsion pendulum — a pendulum the weight of which is rotated alternately in opposite directions through a horizontal plane by the torsion of the suspending rod or spring: used for clocks intended to run a long time between windings.
- transpeptidation — the process of transferring an amino acid or group of amino acids from one compound to another.
- trap-door spider — any of several burrowing spiders, of the family Ctenizidae, that construct a tubular nest with a hinged lid.
- turn upside down — invert
- underconsumption — the act of consuming, as by use, decay, or destruction.
- united provinces — (used with a singular or plural verb) former name of Uttar Pradesh.
- unpublished work — a literary work that has not been reproduced for sale or publicly distributed.
- videodisc player — an electronic device for playing videodiscs through a television set.
- windfall profits — Windfall profits are excessive profits with a non-business cause such as a natural disaster.
- wisconsin rapids — a city in central Wisconsin.
- world exposition — world's fair.