sea anemone 
noun
A sedentary marine coelenterate with a columnar body which bears a ring of stinging tentacles around the mouth.
- Order Actiniaria, class Anthozoa.
- Scattered about were sea anemones, reddish lumps in the daylight, but, I was told, when they opened at night their massed tentacles would be almost scarlet.
- There were sea anemones, lots of colorful starfish, and even some sea urchins.
- interpolator
- interpole
- interpose
- interposition
- interpositive
- interpret
- interpretability
- interpretable
- interpretant
- interpretation
- interpretational
- interpretative
- interpretatively
- interpreter
- interpretive
- interprovincial
- interquartile
- interracial
- interracially
- interregional
- interregnum
- interrelate
- interrelatedness
- interrelation
- interrelationship