Words that rhyme with fermenta

What do these rhymes mean?

antenna

an electrical device that sends or receives radio or television signals sensitivity similar to that of a receptor organ

henna

a reddish brown dye used especially on hair apply henna to one's hair; "She hennas her hair every month"

magenta

of deep purplish red a primary subtractive color for light; a dark purple-red color

placenta

that part of the ovary of a flowering plant where the ovules form the vascular structure in the uterus of most mammals

sienna

an earth color containing ferric oxides; used as a pigment