macromutation

[mak-roh-myoo-tey-shuhn]

mac·ro·mu·ta·tion

[mak-roh-myoo-tey-shuhn]
noun Genetics.
a mutation that has a profound effect on the resulting organism, as a change in a regulatory gene that controls the expression of many structural genes.

Origin:
macro- + mutation
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To macromutation

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Macromutation has a plethora of syllables.
So is sesquipedalianism. Does it mean:
given to using long words.
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
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