M

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Mallard's law
mapping
mass attenuation coefficient
maximum likelihood
merohedral
merohedry
mesh
mesocrystal
metric specialization
metric tensor
Miller indices
modular crystal structure
modulated crystal structure
molecular replacement
morphotropism
mosaic crystal
multipole density formalism
multi-electron excitation
multiwavelength anomalous diffraction (MAD)