leaflet

nouns

a thin triangular flap of a heart valve
cusp, leaflet
is derived from
leaf
part of a compound leaf
leaflet
is derived from
leaf
is a type of (narrower)
the main organ of photosynthesis and transpiration in higher plants
foliage, leaf, leafage
a small book usually having a paper cover
booklet, brochure, folder, leaflet, pamphlet
is derived from
leaf