• (a.) Having all four toes united by a web; -- said of certain sea birds, as the pelican and the gannet. See Illust. under Aves.
To`ti·pal'mate adjective [ Latin totus all, whole + English palmate .] (Zoology) Having all four toes united by a web; -- said of certain sea birds, as the pelican and the gannet. See Illust. under Aves . 
In ornithology, the term totipalmate refers to having four toes all fully webbed.
all 4 toes connected by web
totipalmate, totipalmation 1. Having all four toes united by a web; a reference to certain sea birds; such as, pelicans, cormorants, and gannets. 2. Certain water birds that have webbing that connects each of the four anterior toes or have all four toes fully webbed.
All four toes connected to a single web
All toes are joined by webs.