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planula

American  
[plan-yuh-luh] / ˈplæn jə lə /

noun

Zoology.
planulae plural
  1. the ciliate, free-swimming larva of a coelenterate.


planula British  
/ ˈplænjʊlə /

noun

  1. the ciliated free-swimming larva of hydrozoan coelenterates such as the hydra

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

planula Scientific  
/ plănyə-lə /
planulae plural
  1. The flat, free-swimming, ciliated larva of a cnidarian.


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of planula

1865–70; < New Latin, diminutive of Latin plānum something flat. See plane 1, -ule

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The zygote divides and grows into a planula larva, which looks like a swimming millipede.

From Textbooks • Jan. 1, 2015

Both gametes are produced by the polyp, which can fuse to give rise to a free-swimming planula larva.

From Textbooks • Jan. 1, 2015

After fertilization, the zygote develops into a blastula, which develops into a planula larva.

From Textbooks • Jan. 1, 2015

The planula larva anchors itself to the sea bottom and grows into a tube-shaped polyp.

From Textbooks • Jan. 1, 2015

I told them about jellyfish life cycles—that jellies start off almost like a plant, clinging to the bottom of the sea, and how in that phase of life, they are a planula.

From "The Thing About Jellyfish" by Ali Benjamin

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