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Echinodermata

(Encyclopedia) CE5 Internal anatomy of a sea star, representative of the phylum Echinodermata Echinodermata əkīˌnōdûrˈmətə [key] [Gr.,=spiny skin], phylum of exclusively marine bottom-dwelling invertebra...

brittlestar

(Encyclopedia)brittlestar, common name for echinoderms belonging to the class Ophiuroidea. The name is derived from their habit of breaking off arms as a means of defense. New arms are easily regenerated. They are ...

Marsh test

(Encyclopedia)Marsh test, method for the detection of arsenic, so sensitive that it can be used to detect minute amounts of arsenic in foods (the residue of fruit spray) or in stomach contents. The sample is placed...

grid

(Encyclopedia)grid: see electron tube.

klystron

(Encyclopedia)klystron: see electron tube.

tetrode

(Encyclopedia)tetrode: see electron tube.

triode

(Encyclopedia)triode: see electron tube.

plate

(Encyclopedia)plate: see electron tube.

pentode

(Encyclopedia)pentode: see electron tube.

oviduct

(Encyclopedia)oviduct: see fallopian tube.
 

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