viruses inside a cell, running off row after row of symmetrical polygons as though laying down crystals.
LEWIS THOMAS, The Lives of a Cell
In one large painting he had put a bell-shaped mountain in the very foreground and covered it with meticulously painted trees, each of which stood out at right angles to the ground, where it grew exactly as the nap stands out on folded plush. MARILYNNE ROBINSON, Housekeeping
Now whether it was physically impossible, with half a dozen hands all thrust into the napkin at a time—but that some one chestnut, of more life and rotundity than the rest, must be put in motion—it so fell out, however, that one was actually sent rolling off the table; and as Phutatorius sat straddling under—it fell perpendicularly into that particular aperture of Phutatorius’s breeches, for which, to the shame and indelicacy of our language be it spoke, there is no chaste word throughout all Johnson’s dictionary....
LAURENCE STERNE, Tristram Shandy
S-shaped
sigmoid, annodated
saddle-shaped
selliform
sandal-shaped
sandaliform
saucer-shaped
pateriform, acetabuliform
sausage-shaped
allantoid, botuliform
scimitar-shaped
acinaciform
scissors-shaped
forcifonn
shallow-depression-shaped
glenoid
shark-shaped
squaliform, selachian
shell-shaped
conchiform, conchate
shield-shaped
scutiform, scutatiform, aspidate, elytrifonn, peltate, clypeate,
clypeiform, peltiform
shovel- or spade (implement)-shaped
palaceous
sickle-shaped
meniscal meniscate, meniscoid, menisciform, lunate, falcate,
drepaniform, drepanoid, bicorn
sieve-like
cribriform, cribrose, cribral, cribrate, coliform
sling- or loop-shaped
fundiform
slipper-shaped
calceiform, soleiform
Quite different from these nests of paper and clay are those of thickly felted vegetable hairs made by large wasps of the genus Apoica. Round or hexagonal in shape, five or six inches in diameter, these nests have the form of an umbrella without a handle or a stalkless mushroom.
ALEXANDER F. SKUTCH, A Naturalist in Costa Rica
It was in this place of astonishing miniatures that I came upon the lairs of the lions in the sunny sand—ant lions, that is. Small funnel-shaped pits dimpled the sand—inverted cones an inch or two in diameter across the top, tapering to the bottom perhaps an inch deep in the sand.
VIRGINIA S. EIFERT, Journeys in Green Places
Probably the best known of the moths are the sphinx or hawk moths, some of which are so large they resemble hum mingbirds. The bodies of these moths are relatively stout and torpedo-shaped.
DAVID F. COSTELLO, The Prairie World
snail-shell-shaped
cochleate, cochleiform, soleiform
snake-shaped
colubriform, anguiform
spade (implement)- or shovel-shaped
palaceous
spade (cards)- or inverted-heart-shaped
obcordate, obcordiform
spatula-shaped
spatulate
spear-shaped or arrowhead-shaped (with flaring barbs)
hastate
sphere-shaped
spherical, spheriform
spike-shaped
spiciform, spicate
spindle-shaped
fusiform
spine- or thorn-shaped
aculeiform, spiniform
spinning-top-shaped
strombuliform
spoon-shaped
cochleariform, spatulate
spread-fingers-like
digitate
stake-shaped
sudiform
stalk-like
stipiform
star-shaped
astroid, actinoid, stellate, stellar, stelliform
star-shaped (small star)
stellular
So, now, by opening the dam, he was able to fling an imposing girdle of water, a huge quadrilateral with the river as its base, completely around the plantation, like the moat encircling a medieval city.
CARL STEPHENSON, “Leiningen Versus the Ants”
The crust of the Great Basin has broken into blocks. The blocks are not, except for simplicity’s sake, analogous to dominoes. They are irregular in shape. They more truly suggest stretch marks. Which they are.
JOHN MC PHEE, Basin and Range
Salt has a low specific gravity and is very plastic. Pile eight thousand feet of sediment on it and it starts to move. Slowly,