Beau's linesnoun plural
Medical Definition of Beau's lines
: transverse grooves or ridges on a fingernail or toenail that occur from a temporary disruption in nail growth (such as that resulting from severe illness, malnutrition, or chemotherapy) The nails of someone who had pneumonia several weeks previously may show transverse grooves—these "Beau's lines" attest to the nutritional insult to the "nail plate" (the growing part, under the cuticle).— John Stone, The New York Times Magazine, 28 Aug. 1988
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
“In Vino Veritas” and Other Latin Phrases to Live By
Top 10 Latin Phrases
We Added New Words to the Dictionary for October 2021
From 'dad bod' to 'deplatform'
'Deduction' vs. 'Induction' vs. 'Abduction'
'Za' and 9 Other Words to Help You Win at SCRABBLE
The secret top 10 words experts use to win at SCR...
Ask the Editors