planula

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plan·u·la

 (plăn′yə-lə)
n. pl. plan·u·lae (-lē′)
The flat, free-swimming, ciliated larva of a cnidarian.

[New Latin plānula, from Latin, feminine diminutive of plānus, flat (from its shape); see pelə- in Indo-European roots.]

plan′u·lar, plan′u·late′ (-lāt′) adj.

planula

(ˈplænjʊlə)
n, pl -lae (-ˌliː)
(Zoology) the ciliated free-swimming larva of hydrozoan coelenterates such as the hydra
[C19: from New Latin: a little plane, from Latin plānum level ground]
ˈplanular adj

plan•u•la

(ˈplæn yə lə)

n., pl. -lae (-ˌli)
the free-swimming larva of a cnidarian.
[1865–70; < New Latin, diminutive of Latin plānum something flat. See plane1, -ule]
plan′u•lar, plan′u•late (-ˌleɪt) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.planula - the flat ciliated free-swimming larva of hydrozoan coelenteratesplanula - the flat ciliated free-swimming larva of hydrozoan coelenterates
hydroid, hydrozoan - colonial coelenterates having the polyp phase dominant
References in periodicals archive ?
It demonstrates that exposure of coral planulae (baby coral) to oxybenzone, produces gross morphological deformities, damages their DNA, and, most alarmingly, acts as an endocrine disruptor.
Settlement induction of Acropora palmata planulae by a GLW-amide neuropeptide.
Planulae, shaken from the brooding structures of adult medusae caught in the field, settled and metamorphosed into scyphistomae in the lab and were maintained in culture.