SKULLING
Verb
skulling
present participle of skull
Noun
skulling (plural skullings)
The act of determining the age of a young bird by measuring the degree of ossification of its skull.
Source: Wiktionary
SKULL
Skull, n. Etym: [See School a multitude.]
Definition: A school, company, or shoal. [Obs.]
A knavish skull of boys and girls did pelt at him. Warner.
These fishes enter in great flotes and skulls. Holland.
Skull, n. Etym: [OE. skulle, sculle, scolle; akin to Scot. skull,
skoll, a bowl, Sw. skalle skull, skal a shell, and E. scale; cf. G.
hirnschale, Dan. hierneskal. Cf. Scale of a balance.]
1. (Anat.)
Definition: The skeleton of the head of a vertebrate animal, including the
brain case, or cranium, and the bones and cartilages of the face and
mouth. See Illusts. of Carnivora, of Facial angles under Facial, and
of Skeleton, in Appendix.
Note: In many fishes the skull is almost wholly cartilaginous but in
the higher vertebrates it is more or less completely ossified,
several bones are developed in the face, and the cranium is made up,
wholly or partially, of bony plates arranged in three segments, the
frontal, parietal, and occipital, and usually closely united in the
adult.
2. The head or brain; the seat of intelligence; mind.
Skulls that can not teach, and will not learn. Cowper.
3. A covering for the head; a skullcap. [Obs. & R.]
Let me put on my skull first. Beau & Fl.
4. A sort of oar. See Scull. Skull and crossbones, a symbol of death.
See Crossbones.
Source: Webster’s Unabridged Dictionary 1913 Edition