from
The Collaborative International Dictionary of English v.0.48
Pyramidal \Py*ram`i*dal\, a. [Cf. F. pyramidal.]
[1913 Webster]
1. Of or pertaining to a pyramid; in the form of a a pyramid;
pyramidical; as, pyramidal cleavage.
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The mystic obelisks stand up
Triangular, pyramidal. --Mrs.
Browning.
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2. (Crystallog.) Same as {Tetragonal}.
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{Pyramidal numbers} (Math.), certain series of figurate
numbers expressing the number of balls or points that may
be arranged in the form of pyramids. Thus 1, 4, 10, 20,
35, etc., are triangular pyramidal numbers; and 1, 5, 14,
30, 55, etc., are square pyramidal numbers.
[1913 Webster]
from
The Collaborative International Dictionary of English v.0.48
Cuneiform \Cu*ne"i*form\, Cuniform \Cu"ni*form\, n.
1. The wedge-shaped characters used in ancient Persian and
Assyrian inscriptions. --I. Taylor (The Alphabet).
[1913 Webster]
2. (Anat.)
(a) One of the three tarsal bones supporting the first,
second third metatarsals. They are usually designated
as external, middle, and internal, or {ectocuniform},
{mesocuniform}, and {entocuniform}, respectively.
(b) One of the carpal bones usually articulating with the
ulna; -- called also {pyramidal} and {ulnare}.
[1913 Webster]