picti -pic- gismu

x1 is a trillionth [10-12] of x2 in dimension/aspect x3 (default is units).

Cf. grake, mitre, snidu, stero, delno, molro, kelvo, xampo, gradu, litce, merli, centi, decti, dekto, femti, gigdo, gocti, gotro, kilto, megdo, mikri, milti, nanvi, petso, terto, xatsi, xecto, xexso, zepti, zetro.

In notes:

centi
x1 is a hundredth [1/100; 10-2] of x2 in dimension/aspect x3 (default is units).
decti
x1 is a tenth [1/10; 10-1] of x2 in dimension/aspect x3 (default is units).
dekto
x1 is ten [10; 101 ] of x2 in dimension/aspect x3 (default is units).
delno
x1 is x2 candela [metric unit] in luminosity (default is 1) by standard x3.
femti
x1 is 10-15 of x2 in dimension/aspect x3 (default is units).
gigdo
x1 is a billion [British milliard] [109] of x2 in dimension/aspect x3 (default is units).
gocti
x1 is 10-24 of x2 in dimension/aspect x3 (default is units).
gotro
x1 is 1024 of x2 in dimension/aspect x3 (default is units).
grake
x1 is x2 gram(s) [metric unit] in mass (default is 1) by standard x3.
kelvo
x1 is x2 degree(s) Kelvin [metric unit] in temperature (default is 1) by standard x3.
kilto
x1 is a thousand [1000; 103] of x2 in dimension/aspect x3 (default is units).
litce
x1 is x2 liter(s) [metric unit] in volume (default is 1) by standard x3.
megdo
x1 is a million [106] of x2 in dimension/aspect x3 (default is units).
merli
x1 (agent) measures/evaluates x2 [quantity] as x3 units on scale x4 (si'o), with accuracy x5.
mikri
x1 is a millionth [10-6] of x2 in dimension/aspect x3 (default is units).
milti
x1 is a thousandth [1/1000; 10-3] of x2 in dimension/aspect x3 (default is units).
mitre
x1 is x2 meter(s) [metric unit] in length (default 1) measured in direction x3 by standard x4.
molro
x1 is x2 mole(s) [metric unit] in substance (default is 1) by standard x3.
nanvi
x1 is a billionth/thousand-millionth [10-9] of x2 in dimension/aspect x3 (default is units).
petso
x1 is 1015 of x2 in dimension/aspect x3 (default is units).
radno
x1 is x2 radian(s) [metric unit] in angular measure (default is 1) by standard x3.
snidu
x1 is x2 seconds in duration (default is 1 second) by standard x3.
stero
x1 is x2 steradian(s) [metric unit] in solid angle (default is 1) by standard x3.
terto
x1 is a trillion [1012] of x2 in dimension/aspect x3 (default is units).
xampo
x1 is x2 ampere(s) [metric unit] in current (default is 1) by standard x3.
xatsi
x1 is 10-18 of x2 in dimension/aspect x3 (default is units).
xecto
x1 is a hundred [100; 102] of x2 in dimension/aspect x3 (default is units).
xexso
x1 is 1018 of x2 in dimension/aspect x3 (default is units).
zepti
x1 is 10-21 of x2 in dimension/aspect x3 (default is units).
zetro
x1 is 1021 of x2 in dimension/aspect x3 (default is units).
manva
x1 is ten thousand [10000; 104] of x2 in dimension/aspect x3
nulpa
x1 is 1 [1×100] of x2 in dimension/aspect x3 (default is units).
paska
x1 is x2 Pascal [metric unit] in pressure (default is 1) by standard x3.
xaudbo
x1 is \sqrtA = \sqrt2×5 [decimal: 1\times10+(1/2)] of x2 in dimension/aspect x3 (default is units).