Planula is a 7 letter English word. It's valid Scrabble word worth 9 points. It's valid Words with friends word worth 14 points.
You can make 75 anagrams from letters in planula (aallnpu).
1865-70; New Latin, diminutive of Latin plānum something flat. See plane1, -ule
In Aeginopsis a planula is formed by multipolar immigration.
The one group contains the larva of the Cœlenterata or planula, the other group the larv of all the other forms.
The name planula signifies "wandering animal," because the planula larva swims about by means of cilia.
The planula (fig. 216) is characterised by its extreme simplicity.
The planula has its two extremities dissimilar (Bipolaria-larva).
The upper surface of the planula then becomes depressed and forms a gullet, and in time a complete animal is formed.
The larva has now become a planula, and consists of a closed sack with double walls.
The planula is very probably the ancestral form of the Cœlenterata.
This new individual is at first an active free-swimming larva called a planula, which does not resemble either a medusa or polyp.
planula, plan′ū-la, n. the locomotory embryo of the cœlenterates.
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