spirotrich
(class Spirotrichea), any of a group of ciliated protozoans characterized by nonuniform, sparse ciliation and prominent membranelles of fused cilia around the mouth opening. The subclass contains a number of orders. See heterotrich; hypotrich; odontostome; oligotrich; tintinnid.
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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a stew of meat, vegetables, potatoes, etc. |