egg case

noun

Entomology, ootheca.

Entomology, egg sac.

Origin:
1840–50

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage

Science Dictionary

egg case

A protective capsule of certain animals, such as insects and mollusks, that contains eggs.
See egg sac.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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00:10

Egg case is always a great word to know.

So is flibbertigibbet. Does it mean:

an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.

a chattering or flighty, light-headed person.

Example sentences

One case being investigated is the sea turtle egg case mentioned previously.

Larval appendages can be seen at the top of the egg case.

When the egg hatches, the larva stays in its hanging egg case, reaches into the pile of caterpillars and begins feeding.

Two hundred or more mantis nymphs may emerge from a single egg case.

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