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tuna

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tuna

1
1. any of various large marine spiny-finned fishes of the genus Thunnus, esp T. thynnus, chiefly of warm waters: family Scombridae. They have a spindle-shaped body and widely forked tail, and are important food fishes
2. any of various similar and related fishes

tuna

2
1. any of various tropical American prickly pear cacti, esp Opuntia tuna, that are cultivated for their sweet edible fruits
2. the fruit of any of these cacti
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

tuna

[′tü·nə]
(vertebrate zoology)
Any of the large, pelagic, cosmopolitan marine fishes which form the family Thunnidae including species that rank among the most valuable of food and game fish.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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transurethral needle ablation (TUNA): minimally invasive technology which uses microwave energy to heat the prostate
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Systematic review and meta-analysis of transurethral needle ablation in symptomatic benign prostatic hyperplasia.
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