OSTIUM Definition & Meaning

ostium

[os-tee-uhm]

Phonetic (Standard)IPA

noun

plural

ostia

Anatomy, Zoology.��a small opening or orifice, as at the end of the oviduct.
Zoology.��one of the tiny holes in the body of a sponge.

ostium

/ ˈɒ��ɪə�� /

noun

any of the pores in sponges through which water enters the body
any of the openings in the heart of an arthropod through which blood enters
any similar opening

Discover More

51�Թ� History and Origins

Origin of ostium¹

First recorded in 1655–65, ostium is from the Latin word ō��پ��ܳ� entrance, river mouth

Discover More

51�Թ� History and Origins

Origin of ostium¹

C17: from Latin: door, entrance

Discover More

Example Sentences

Examples have not been reviewed.

At first it does not quite reach the endocardial cushions in the auricular canal, already mentioned, but leaves a gap, called the ostium primum, between.

From

When it is established the septum primum grows down and meets the endocardial cushions, and so the ostium primum is obliterated.

From

This has nothing to do with the foramen ovale, which occurs as an independent perforation higher up, and at first is known as the ostium secundum.

From

Quid ad hominem claustra, carcer, custodia? liberum ostium habet.

From

Decimo quarto Kalendas Januarii Patagonicis recognitis litoribus ad ostium appulit freti.

From

ostiole ostler

Browse