synangial
/ˌsɪnæŋˈɡiəl/Definitions
1. adjective
Relating to or constituting a synangium.
“The synangial structure of the plant played a crucial role in its photosynthesis.”
2. noun
A synangium; a joint or connection between two leaves or fronds.
“The botanist studied the synangial region of the fern to understand its growth pattern.”