Did you mayhaps mean photophobia?
Examples
“Nobody's sure what triggers brontophobia (the fear of thunderstorms).”
Lists
These user-created lists contain the word ‘brontophobia’.
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phrontistery - b
List of words from phrontistery.info
bywoner, byssus, byssiferous, byssaceous, byrnie, butyric, butyraceous, buttery, buteonine, bunting, burdet, broma and 582 more...
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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Thunder
Boanerges, brontosaurus, fremitus, lower, thunderstone, thunderstroke, incus, thunderwear, thundersnow, Thor, Pērkons, thunderbird and 38 more...
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φόβος
ablutophobia, acarophobia, acerophobia, agliophobia, batophobia, bibliophobia, brontophobia, bufonophobia, cacophobia, caligynephobia, catoptrophobia, chaetophobia and 221 more...
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C. S. Bird – Grandiloquent Dictionary
All the words from the Grandiloquent Dictionary.
946 of these 2700 words do not yield any results in six different dictionaries, hence many of them might be misspellings.
More in...abacinate, abcedarian, abderian, ablegate, abligurition, ablutophobia, abnormous, acarophobia, acathasia, accipitrine, accidia, accubitus and 2690 more...
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Courtesy of Josefa
A selection of words appearing in Mrs Byrne's dictionary of unusual, obscure, and preposterous words (1994 edition).
trollylolly, pozzy-wallah, kittly-benders, jimberjaw, lollybanger, randle, aval, perjinkities, brontophobia, mumruffin, rotche, atmatertera and 29 more...
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Phobias and other psychological disor...
Tweets
Looking for tweets for brontophobia.

grandpa27 brontosaur |?bränt??sôr| (also brontosaurus |?bränt??sôr?s|)
noun
another term for apatosaur .
DERIVATIVES
brontosaurian |?bränt??sôr??n| adjective
ORIGIN modern Latin from Greek bront? ‘thunder’ + sauros ‘lizard.’
It appears to me that brontophobia is a fear of thunder Apr 4, 2009
reesetee I don't know, sionnach--Lizard Lick is pretty good, but I always liked Dam Neck, VA (part of a U.S. Naval Air Station). Dec 21, 2007
seanahan It's a race for the first hilarious comment to be posted brontephobia. Dec 21, 2007
sionnach One of my favorite placenames on this little planet of ours has always been Lizard Lick, North Carolina.
There's something intrinsically exciting about saurian salivation. Especially where those thunder lizards are involved.
I admit it. I'm a brontosauroptyalophiliac. Dec 21, 2007
uselessness Now there's an image. When dinosaurs roamed leaped around the earth... "Incoming!!" Dec 20, 2007
sionnach U: Yes, bronto- is the thunder prefix. Except in certain parts of Yorkshire.
However, I believe the preferred style of lizard locomotion is leaping, rather than thundering. Dec 20, 2007
uselessness Isn't it literally "fear of thunder"? I seem to remember brontosaurus meaning "thunder lizard" because of the booming sound it probably made when it walked. Dec 20, 2007
sionnach Fear of inclement weather on the moors. Dec 20, 2007