21-letter words containing h, o, d, i, n

schema definition set — (SDS) Something in Portable Common Tool Environment.
school superintendent — an official whose job is to oversee school administration within a district
set the world on fire — the earth or globe, considered as a planet.
shams ud-din mohammed — (Shams ud-din Mohammed) c1320–89? Persian poet.
sheppard's correction — a method of correcting the bias in standard deviations and higher moments of distributions that arises from grouping values of the variable.
silicon tetrachloride — a colorless, fuming liquid, SiCl 4 , used chiefly for making smoke screens and various derivatives of silicon.
snappy video snapshot — (hardware) (registered trademark) A frame grabber for the IBM PC designed and marketed by Play, Inc..
snr bandwidth product — (communications) The integral of the SNR over frequency. The SNR bandwidth product is an important limit in the capacity of a communication channel.
sovereign wealth fund — an investment fund created using the financial assets of a national government
spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
synchronized shifting — gear shifting in which the gears to be meshed are made to rotate at the same speed.
synchronized swimming — a sport growing out of water ballet in which swimmers, in solo, duet, and team efforts, complete various required figures by performing motions in relatively stationary positions, along with a freestyle competition, with the contestants synchronizing movements to music and being judged for body position, control, and the degree of difficulty of the moves.
synchrotron radiation — electromagnetic radiation emitted by charged particles as they pass through magnetic fields.
the antipodes islands — a group of small uninhabited islands in the South Pacific, southeast of and belonging to New Zealand. Area: 62 sq km (24 sq miles)
the middle of nowhere — remote place
the moral high ground — If you say that someone has taken the moral high ground, you mean that they consider that their policies and actions are morally superior to the policies and actions of their rivals.
the oldest profession — prostitution
the student community — the body of students in further and higher education, considered as a whole
thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
thin end of the wedge — anything unimportant in itself that implies the start of something much larger
think outside the box — to think in a different, innovative, or original manner, esp with regard to business practices, products, systems, etc
to be mixed up in sth — if you are mixed up in something, usually something bad, you are involved in it
to blow sth wide open — to expose something
to dig one's heels in — If you dig your heels in or dig in your heels, you refuse to do something such as change your opinions or plans, especially when someone is trying very hard to make you do so.
to hit the bookstands — (of a book) to be published
to let your hair down — If you let your hair down, you relax completely and enjoy yourself.
to live hand to mouth — If someone lives hand to mouth or lives from hand to mouth, they have hardly enough food or money to live on.
to put the wind up sb — If something or someone puts the wind up you, they frighten or worry you.
until the end of time — If you say that something will happen or be true until the end of time or to the end of time, you are emphasizing that it will always happen or always be true.
up hill and down dale — strenuously and persistently
washington's birthday — February 22, formerly observed as a legal holiday in most states of the U.S. in honor of the birth of George Washington.
well-ordering theorem — the theorem of set theory that every set can be made a well-ordered set.
whip-and-tongue graft — a graft prepared by cutting both the scion and the stock in a sloping direction and inserting a tongue in the scion into a slit in the stock.
white-crowned sparrow — a North American sparrow, Zonotrichia leucophrys, having black and white stripes on the head.
wholesale price index — an indicator of price changes in the wholesale market
with one's bare hands — If someone does something with their bare hands, they do it without using any weapons or tools.

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