The word "ductulua" may seem like an unusual spelling, but it can be explained phonetically with the IPA transcription. The first syllable, "duc," is pronounced as [dʌk], while the second syllable, "tu," is pronounced as [tuː]. The final syllable, "lua," is pronounced as [luːə]. Putting all the syllables together, the word is pronounced as [dʌk.tu.luːə]. This word does not appear to have any known meaning in English, but phonetically explains its spelling.
There is no apparent etymology or meaning for the word "ductulua" in any known language. It is possible that "ductulua" is not a genuine word and may be a misspelling or a made-up term without any etymological background.