bĭpalmis, e (access. form bĭpalmus, a, um, App. Herb. 7), adj. [bis-palmus],
two spans long or broad , of two spans (very rare): tabulae, Varr. R. R. 3, 7, 4: spiculum, Liv. 42, 65, 9.
bipalmis e, adj.bi-+palmus, two spans long : spiculum, L. ...
An Elementary Latin Dictionary