noun
ballast tamper; tamping machine
A railway maintenance machine that tamps ballast under tracks. Wasei-eigo from English 'multiple tie tamper'.
wasei-eigo (Japanese-coined English), from multiple tie tamper
マルチプルタイタンパーは線路の保守に欠かせない機械だ。
The multiple tie tamper is an essential machine for railway track maintenance.
Variant with a middle dot separator.
Variant with two middle dot separators.
Wasei-eigo from English 'multiple tie tamper'. The exact derivation is uncertain, but it refers to a machine that tamps multiple railway ties at once.