Periostracum
Definition of Periostracum
Per`i`os´tra`cum
n.
1.
(Zool.)
A
chitinous
membrane
covering
the
exterior
of
many
shells
; -
called
also
epidermis
.
Word:
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Periodate
Periodic
Periodic comet
Periodic function
Periodic law
Periodical
Periodical year
Periodicalist
Periodically
Periodicalness
Periodicity
Periodide
Periodontal
Periodoscope
Perioeci
Periople
Perioplic
Periosteal
Periosteum
Periostitis
-Periostracum-
Periotic
Peripatecian
Peripatetic
Peripatetical
Peripateticism
Peripatus
Peripetalous
Peripheral
Peripheric
Periphery
Periphrase
Periphrasis
Periphrastic
Periphrastic conjugation
Periphrastically
Periplast
Peripneumonia
Peripneumonic
Periproct
Periproctitis
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