Slowest Growing of All Fingernails
This page is the CodyCross answer for the clue below from Babies and Toddlers, Group 1678, Puzzle 2 (Sucking Thumb).
Question is: Slowest Growing of All Fingernails
and the answer is: THUMBNAIL
Word Meaning:
THUMBNAIL — The fingernail on the thumb.
Definitions from Wiktionary.