uptrace

nounB1

Định nghĩa theo từ loại

Danh từ

noun

Plural noun:

uptraces

1.
(fishing) An almost vertical line that attaches a float to a bait that is resting on the bed of the river.
2.
The process of taking scientific samples as a probe is moving upward.

Nguồn gốc từ

From up- + trace.