a measure of the depth of water taken with a sounding line

the act of measuring depth of water (usually with a sounding line)

appearing to be as specified; usually used as combining forms

having volume or deepness

making or having a sound as specified; used as a combining form

a person whose reactions to something serve as an indication of its acceptability

(music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument

a metal bob at the end of a sounding line

(nautical) plumb line for determining depth

a research rocket used to obtain information about the atmosphere at various altitudes