Recent experiments showed that frataxin is essential for assembling iron-sulfur clusters and for cell survival.

The council meeting descended into a fratch over the new parking regulations.

When the will was read, the cousins began to fratch over who would inherit the farmhouse, their heated voices drifting across the Yorkshire moor.

Frater, whose surname once denoted his ancestor's occupation, reopened the family workshop.

Researchers found that frataxins play a critical role in mitochondrial iron homeostasis in neuronal cells.

Don't get fratchy with me just because I'm asking questions.

The university campus is dotted with old frater houses that have sheltered generations of scholars.

The alumni gathered at the old frater house to celebrate fifty years of friendship.

The museum's exhibit highlighted the fraterculine beak structure that distinguishes puffins from other seabirds.

At the reunion, my fratchety uncle turned every innocent remark into a heated debate.