Both toxins are infrequently found in nature and rarely occur together.

She was fat yet withered, two undesirable attributes infrequently found together.

The louse Trichodectes vulpis specifically targets foxes, but is found infrequently.

In addition, acetamide is found infrequently on burning coal dumps, as a mineral of the same name.

The forms given in parentheses were cited by Macuch, who noted that they were infrequently found and not consistently used.

Coins from these reigns are infrequently found in hoards, and several of them depicted Roman warships.

This was the type of man he was looking for and, by his own account, not infrequently found.

Sturgeon were found infrequently in later 17th century deposits.

Beachgrass is less vigorous in stabilized sand, and is only infrequently found further inland than the coastal foredunes.

Within this small range it is found only infrequently, making it of conservation concern.