noun. In heraldry, same as mullet.

noun. A plane curve of the sixth class and fourth order, having two conjugate diameters of a conic and the line at infinity as inflectional tangents.

noun. A hypocycloid with four cusps.

"I have been watching over the last week the arguments of the various camps of keeping the moon option, going directly to Mars, go to an NEO astroid, and several others."

asteroid  

asteroid  astronomy