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Rebecca O'Connell
Rebecca O'Connell

What's the Longest Word in the World? Here are 12 of Them, By Category

Rebecca O'Connell
Rebecca O'Connell

Antidisestablishmentarianism, everyone’s favorite agglutinative, entered the pop culture lexicon on August 17, 1955, when Gloria Lockerman, a 12-year-old girl from Baltimore, correctly spelled it on The $64,000 Question as millions of people watched from their living rooms. At 28 letters, the word—which is defined as a 19th-century British political movement that opposes proposals for the disestablishment of the Church of England—is still regarded as the longest non-medical, non-coined, nontechnical word in the English language, yet it keeps some robust company. Here are some examples of the longest words by category.

1. METHIONYLTHREONYLTHREONYGLUTAMINYLARGINYL … ISOLEUCINE 

Note the ellipses. All told, the full chemical name for the human protein titin is 189,819 letters, and takes about three-and-a-half hours to pronounce. The problem with including chemical names is that there’s essentially no limit to how long they can be. For example, naming a single strand of DNA, with its millions and millions of repeating base pairs, could eventually tab out at well over 1 billion letters.

2. LOPADOTEMACHOSELACHOGALEOKRANIOLEIPSAN …P TERYGON

The longest word ever to appear in literature comes from Aristophanes’ play, Assemblywomen, published in 391 BC. The Greek word tallies 171 letters, but translates to 183 in English. This mouthful refers to a fictional fricassee comprised of rotted dogfish head, wrasse, wood pigeon, and the roasted head of a dabchick, among other culinary morsels. 

3. PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS

At 45 letters, this is the longest word you’ll find in a major dictionary. An inflated version of silicosis, this is the full scientific name for a disease that causes inflammation in the lungs owing to the inhalation of very fine silica dust. Despite its inclusion in the dictionary, it’s generally considered superfluous, having been coined simply to claim the title of the longest English word.

4. PARASTRATIOSPHECOMYIA STRATIOSPHECOMYIOIDES 

The longest accepted binomial construction, at 42 letters, is a species of soldier fly native to Thailand. With a lifespan of five to eight days, it’s unlikely one has ever survived long enough to hear it pronounced correctly.

5. PSEUDOPSEUDOHYPOPARATHYROIDISM

This 30-letter thyroid disorder is the longest non-coined word to appear in a major dictionary.

6. FLOCCINAUCINIHILIPILIFICATION

By virtue of having one more letter than antidisestablishmentarianism, this is the longest non-technical English word. A mash-up of five Latin roots, it refers to the act of describing something as having little or no value. While it made the cut in the Oxford English Dictionary, Merriam-Webster volumes refuse to recognize it, chalking up its existence to little more than linguistic ephemera.

7. SUBDERMATOGLYPHIC

At 17 characters, this is the longest accepted isogram, a word in which every letter is used only once, and refers to the underlying dermal matrix that determines the pattern formed by the whorls, arches, and ridges of our fingerprints. 

8. SQUIRRELLED

Though the more commonly accepted American English version carries only one L, both Oxford and Merriam-Webster dictionaries recognize this alternate spelling and condone its one syllable pronunciation (think “world”), making it the longest non-coined monosyllabic English word at 11 letters.

9. ABSTENTIOUS

One who doesn’t indulge in excesses, especially food and drink; at 11 letters this is the longest word to use all five vowels in order exactly once.

10. ROTAVATOR 

A type of soil tiller, the longest non-coined palindromic word included in an English dictionary tallies nine letters. Detartrated, 11 letters, appears in some chemical glossaries, but is generally considered too arcane to qualify.

11. and 12. CWTCH, EUOUAE

The longest words to appear in a major dictionary comprised entirely of either vowels or consonants. A Cwtch, or crwth, is from the Welsh word for a hiding place. Euouae, a medieval musical term, is technically a mnemonic, but has been accepted as a word in itself. 

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language
How to Say Merry Christmas in 26 Different Languages
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“Merry Christmas” is a special greeting in English, since it’s the only occasion we say “merry” instead of “happy.” How do other languages spread yuletide cheer? Ampersand Travel asked people all over the world to send in videos of themselves wishing people a “Merry Christmas” in their own language, and while the audio quality is not first-rate, it’s a fun holiday-themed language lesson.

Feel free to surprise your friends and family this year with your new repertoire of foreign-language greetings.

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Big Questions
What’s the Difference Between a Gift and a Present?
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It’s that time again when we’re busy buying, wrapping, and giving them. Sometimes we call them gifts, sometimes presents. Is there a difference?

The words come to us from different language families. Gift comes from the old Germanic root for “to give.” It referred to an act of giving, and then, to the thing being given. In Old English it meant the dowry given to a bride’s parents. Present comes from the French for "to present." A present is the thing presented or bestowed. They were both in use for the idea of something undergoing a transfer of possession without expectation of payment from the 13th century onward.

The words gift and present are well-matched synonyms that mean essentially the same thing, but even well-matched synonyms have their own connotations and distinctive patterns of use. Gift applies to a wider range of situations. Gifts can be talents. You can have the gift of gab, or a musical gift. Gifts can be intangibles. There is the gift of understanding or the gift of a quiet day. We generally don’t use present for things like this. Presents are more concrete. A bit more, well, present. If your whole family gave donations to your college fund for your birthday would you say “I got a lot of presents”? It doesn’t exactly sound wrong, but since you never hold these donations in your hand, gifts seems to fit better.

Gift can also be an attributive noun, acting like an adjective to modify another noun. What do you call the type of shop where you can buy presents for people? A gift shop. What do you call the basket of presents that you can have sent to all your employees? A gift basket. Present doesn’t work well in this role of describing other nouns. We have gift boxes, gift cards, and gift wrap, not present boxes, present cards, and present wrap.

Gift appears to be more frequent than present, though it is difficult to get accurate counts, because if you compare occurrences of the noun present with the noun gift, you include that other noun present, meaning the here and now. However, the plural noun presents captures only the word we want. Gifts outnumbers presents in the Corpus of Contemporary American English by four to one.

Still, according to my personal sense of the words, present—though it may not be as common—is more casual sounding than gift. I expect a child to ask Santa for lots and lots of presents, not many, many gifts. But whether it’s gifts or presents you prefer, I wish you many and lots this year, of both the tangible and intangible kind.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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