| filterable virus n. A virus that is small enough to pass through a fine-pored filter, as of diatomite or porcelain. Also called ultravirus. |
ul·tra·vi·rus (ŭl'trə-vī'rəs) n. pl. ul·tra·vi·rus·es See filterable virus. |
ultravirus ul·tra·vi·rus (ŭl'trə-vī'rəs)
n.
A filterable virus.