millipede
A common terrestrial arthropod with many legs; often found in damp places.
There was a millipede under the stone in the garden.
train millipede; Parafontaria laminata
Usually written in katakana; usually written in kana.
Hiragana spelling; also common.
Kanji form is rare and mainly encountered in scientific or older texts.
The origin is uncertain; the kanji 馬陸 literally means 'horse land', but this is likely an ateji assignment based on Chinese usage.