noun, verb — 6 senses
/ˈθʌm.neɪl/
Etymology From thumb + nail. Compare West Frisian tommeneil (“thumbnail”), Dutch duimnagel (“thumbnail”), German Daumennagel (“thumbnail”). The phrase thumbnail sketch was first attested 1852. Verb sense attested 1930s.
The fingernail on the thumb.
A rough sketch (e.g., the size of one's thumbnail).
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences A small picture, used as a compact representation of a larger image.
A small picture representing a post or a video in a list.
Etymology From thumb + nail. Compare West Frisian tommeneil (“thumbnail”), Dutch duimnagel (“thumbnail”), German Daumennagel (“thumbnail”). The phrase thumbnail sketch was first attested 1852. Verb sense attested 1930s.
To describe concisely.
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences To create a smaller representation of (a larger image).
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.