Did you maybe mean Trema?
Definitions
Century Dictionary and Cyclopedia
- n. A genus of apetalous plants, of the order Urticaceæ and tribe Celtideæ. It is characterized by lateral free stipules, polygamous flowers, and narrow cotyledons. There are about 30 species, perhaps to be reduced to 20, widely dispersed through tropical and subtropical regions, often described under the names Sponia and Celtis They are trees or tall shrubs, bearing alternate serrate leaves three-nerved at the base and nsually two-ranked. The flowers are borne in cymes nearly sessile in the axils, followed by small drupes often with the perianth and the involute style-branches persistent. T. micrantha, known in Jamaica as nettle-tree, is a rough-leaved shrub or small tree, widely diffused from Cuba to Brazil. Three species occur in Australia, and are known as hoop-ash; of these T. orientalis, a tree about 40 feet high with evergreen leaves silvery beneath, extends also to Ceylon, and is known as charcoal-tree in India, where it springs up profusely in deserted grounds.
- n. [lowercase] In anatomy:
- n. A foramen.
- n. The vulva.
Wiktionary
- n. a diacritic consisting of two dots ( ¨ ) placed over a letter, used among other things to indicate umlaut or diaeresis.
WordNet 3.0
- n. an evergreen tree of the family Ulmaceae that grows in tropical America and Africa and Asia
Etymologies
- Ancient Greek τρῆμα (trêma, "hole"), from τετραίνω (tetraínō, "perforate"), used for the dots on dice, via Dutch trema and French tréma. (Wiktionary)
Examples
“I always need something like a "smaller than" symbol or a "trema" symbol (double dot), so I alternate.”
“For example, when you are in babel's dutch language mode you can write twee "en in which" is a trema, which is not equivalent to twee\ "en, which is then (actually always) specifically an umlaut.”
“Probably because of that strange little trema (a French kind of umlaut or diaeresis) over the "e".”
“Hallelujah for script that schizophrenically mixes upper and lower case, and for the two dot umlaut-like trema over the i, and the acute accent mark over the final e in the word naïveté, and for the proper use of the word capitol, which has but a single proper use.”
“Similamente operando all 'artista ch' a l'abito dell 'arte e man che trema.”
“Io trema' (I replied out of the same opera) -- 'Io trema -- di te!”
“My X-trema cookware pots -- my mom sent them to me for Christmas, and now I use them for everything; sautéing, baking, and boiling!”
“The difference is that a trema disappears when the word is hyphenated at that specific letter, while an umlaut would stay.”
“The closest relative to this film would be the media-excavations of fellow Italians Quando l'occhio trema [When the eye trembles] is an explicit homage to Un Chien Andalou, but while that earlier film trades in nightmare logic and gender anxiety,”
“Copy from there, and what is pasted (on my machine) is a simple a without trema / umlaut.”
Lists
These user-created lists contain the word ‘trema’.
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phrontistery-t
from phrontistery.info
tabacosis, tabanid, tabaret, tabati?re, tabby, tabefaction, tabellary, tabellion, tabernacle, tabernacular, tabescent, tabific and 930 more...
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Interesting words
A list of words that are odd or words that I have looked up.
concupiscence, brize, scree, scoria, forestaff, spanaemia, valetudinarianism, distasture, pyrethrum, laudanum, gentian, bicameral and 11184 more...
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The New Yorker's style manual
This list is my attempt to figure out The New Yorker's style and usage guidelines. It is based on reading articles within the pages of that venerable magazine and working backward. Feel free to add...
coöperate, diaeresis, trema, dieresis, t. h. white write..., updike plug, meracious eclecti..., kael without fail, E.B. White, coöperation, zoölogical, reënter and 14 more...
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It Has a Name??
Yes. Yes it does.
aglet, armsaye, scroop, rowel, ferrule, rasceta, chanking, philtrum, frenulum, keeper, agelast, punt and 285 more...
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Trees!
mahogany, sequoia, balsa, sandalwood, tamarind, balsam, eucalyptus, birch, willow, buttonwood, evergreen, loblolly and 501 more...
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Word Gems
foist, coercion, abecedism, abiectic, abigeus, abiogenesis, ablaut, thunderstruck, dumbfounded, flabbergasted, filagree, blotto and 196 more...
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rememberers
prolix, ageusia, animadversion, anodyne, antic, arabesque, beadle, brachymetropia, colophon, desquamation, diaphoresis, diegesis and 3250 more...
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true wood
durable steadfast words
rhododendron, philodendron, druid, dendron, dryopithecine, germander, dryad, drupe, obdurate, indurate, endure, dura matre and 70 more...
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points, accents, and curious characters
terms for punctuation, accents, typography, etc.
guillemet, ellipsis, tilde, diaeresis, dieresis, umlaut, virgule, pilcrow, alinea, etc., hyphen, em dash and 16 more...
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a little carrot over the 'a'
being the names of diacritical marks
cedilla, accent, caron, breve, circumflex, macron, diaeresis, dot, hook, horn, ogonek, ring and 5 more...
Tweets
Looking for tweets for trema.

madmouth in SBC, it means "stage fright", presumably from the root meaning whence the Italian also comes.
you are probably having an, "oh, Wordnet!" moment there Apr 26, 2010
focalist Two of the citations illustrate the meaning of "trema" as a diacritical mark; the others are all examples of the Italian word "trema" (= "trembles"); and none of them refers to the botanical meaning which is the only one given here! Apr 26, 2010