Ostia

Ostia

[os-tee-uh; Italian aw-styah]
noun
a town in central Italy, SW of Rome: ruins from 4th century b.c.; site of ancient port of Rome.
Dictionary.com Unabridged

ostium

[os-tee-uhm]
noun, plural ostia [os-tee-uh] .
1.
Anatomy, Zoology. a small opening or orifice, as at the end of the oviduct.
2.
Zoology. one of the tiny holes in the body of a sponge.

Origin:
1655–65; < Latin ōstium entrance, river mouth

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ostia
Collins
World English Dictionary
Ostia (ˈɒstɪə)
 
n
an ancient town in W central Italy, originally at the mouth of the Tiber but now about 6 km (4 miles) inland: served as the port of ancient Rome; harbours built by Claudius and Trajan; ruins excavated since 1854

ostium (ˈɒstɪəm)
 
n , pl -tia
1.  any of the pores in sponges through which water enters the body
2.  any of the openings in the heart of an arthropod through which blood enters
3.  any similar opening
 
[C17: from Latin: door, entrance]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

ostium os·ti·um (ŏs'tē-əm)
n. pl. os·ti·a (-tē-ə)
A small opening or orifice, as in a body organ.


os'ti·al adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature