spicule

/spik-yool/US // ˈspɪk yul //UK // (ˈspɪkjuːl) //

孢子,骨片,骨架,孢子粉

Definitions

n.名词 noun

1
- : a small or minute, slender, sharp-pointed body or part; a small, needlelike crystal, process, or the like.
- : Zoology. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine and freshwater invertebrates.
- : Astronomy. a jet of gas several hundred miles in diameter rising from the sun's surface to heights of 3,000 to 6,000 miles.

Turner argues that many modern sponges don’t have spicules and that the newly described fossils may be similar.
The spores soon become free, but the spicule often still adheres to them; but they are not attached to the intermingled filaments.
Spiraster, spī-ras′tėr, n. in sponges, a short curved axial rod-like spicule with thick spines.
Spic′ūlum, a spicule; Spike′bill, a merganser, a sawbill: the marbled godwit.
The contents may be clear yellow serum or watery pus; sometimes a small spicule of bone is discharged.
The spicule thus resembles a little trumpet resting on its mouth.