spiculum
spic.u.lum \'spik-y*-l*m\ \-l*\ n or spic.u.la [L, small sharp organ, arrowhead] pl : an organ having the form of a spicule; broadly : SPICULE
spic.u.lum \'spik-y*-l*m\ \-l*\ n or spic.u.la [L, small sharp organ, arrowhead] pl : an organ having the form of a spicule; broadly : SPICULE