preamplifyv.
/(ˌ)priːˈamplᵻfʌɪ/, U.S. /ˌpriˈæmpləˌfaɪ/ transitive. To subject to or provide with preliminary amplification (in various senses); esp. to amplify (a signal) using a preamplifier.
ΘΚΠ
the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [verb (transitive)] > amplify
amplify1915
preamplify1948
1948 Sheboygan (Wisconsin) Press 6 May 15/3 (advt.) The microphone is pre-amplified for sensitive recording of group discussions.
1959 Geophysics 24 750 The reflected signal detected by the hydrophone is pre-amplified, passed through a variable passive filter, then amplified and printed on the recorder.
1978 Nature 14 Sept. 111/2 The signals were preamplified and detected by two automatic gain-controlled receivers.
2001 Ann. Bot. 88 1018/2 The template DNA was first pre-amplified using AFLP primers each with one selective nucleotide.
Derivatives
preˈamplified adj.
ΘΚΠ
the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [adjective] > preamplified
preamplified1962
1962 Geochimica & Cosmochimica Acta 26 347 The pre-amplified pulses were fed into a 100-channel pulse height analyzer.
1997 Proc. National Acad. Sci. U.S.A. 94 2003/1 The preamplified acoustic waveform and the x and y outputs from both video movement tracking systems were routed directly to an analog-to-digital converter.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
<
v.1948