Invisible, a.
Etymology: [F. invisible, L. invisibilis. See In- not, and Visible.]
Incapable of being seen; not perceptible by vision; not visible. To us invisible, or dimly seen In these thy lowest works. Milton. Invisible bird (Zoöl.), a small, shy singing bird (Myadestes sibilons), of St. Vincent Islands. -- Invisible green, a very dark shade of green, approaching to black, and liable to be mistaken for it.
1 other Webster entry under this spelling
Invisible, n.
1. An invisible person or thing; specifically, God, the Supreme Being.
2. A Rosicrucian; -- so called because avoiding declaration of his craft. [Obs.]
3. (Eccl. Hist.)
One of those (as in the 16th century) who denied the visibility of the church. Shipley.