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1. (n.) planarian
any of various free-swimming, mostly freshwater flatworms, having an undulating or sluglike motion.
Etymology: (1885–60; < NL Planari(a) a flatworm genus (n. use of fem. of LL plānārius level, on level ground; taken to mean “flat”; see plane1, -ary ) + -an1)
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| Definition of 'planarian' |
Princeton's WordNet |
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1. (noun) planarian, planaria
free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
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| Definition of 'planarian' |
Webster Dictionary |
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1. (noun) planarian
one of the Planarida, or Dendrocoela; any turbellarian worm
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