It measures, in maritime terms

I believe the answer is:

meter

'it measures' is the definition.
(I've seen this before)

'in maritime terms' is the wordplay.
'in' says the answer is hidden in the clue.
'METER' can be found hidden inside 'maritime terms'.

(Other definitions for meter that I've seen before include "Poe sometimes used this" , "Device that measures, say, electricity usage" , "Measuring device, say for electricity usage" , "Apparatus for measuring" , "Device for recording, say, usage (5)" .)

I've seen this clue in The Irish Independent.

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