from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A small needlelike structure, such as a copulatory organ in a nematode.
from The Century Dictionary.
- noun A needle-shaped splinter of bone.
- noun In zoology, a spicula or spicule.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) Same as
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A thrusting
javelinused by Romansthat replaced the pilumin the late 3rd century.
- noun A sharp, pointed
crystal, especially of ice.
- noun zoology A sharp, needle-like structure, especially those making up the skeleton of a
- noun astronomy A small radial emission of
gasseen in the chromosphereand coronaof the sun.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Rossiter in this autumn of 1917 was extremely interested in certain crucial experiments he was making with spiculum in sponge-cells; with scleroblasts, "mason-cells," osteoblasts, and "consciousness" in bone-cells.
Stream of emotional, creative impulse strong enough and hot enough to thaw the classical icebergs till not a floating spiculum of them is left.
After sundry caresses between the two parties, during which they exhibit an animation quite foreign to them at other times, one of the snails unfolds from the right side of its neck, where the generative orifice is situated, a wide sacculus, which, by becoming everted, displays a sharp dagger-like spiculum, or dart, attached to its walls.
Refining on the more delicate sound of stipes, the Latins got 'stipula,' the thin stem of straw: which rustles and ripples daintily in verse, associated with spica and spiculum, used of the sharp pointed ear of corn, and its fine processes of fairy shafts.