I. noun Date: 1604 the nail of the thumb, a miniature computer graphic sometimes hyperlinked to a full-size version, II. adjective Date: 1852 concise , brief
THUMBNAIL
Meaning of THUMBNAIL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012