| 释义 |
per·filo·graph
\(ˌ)pərˈfīləˌgraf, -fil-, -rȧf\ noun
Etymology: Latin per filum by means of a cord (from per by means of, through + filum cord, thread) + English -o- + -graph — more at for, file
: an instrument for recording undulations in the bottom of a river or harbor channel |