Following are all the dyads like words, in the list below.
DUAD
100% like dyads
TWOSOME
100% like dyads
TWAIN
99.99% like dyads
PAIR
99.93% like dyads
DOUBLETON
99.78% like dyads
COUPLET
99.65% like dyads
DISTICH
99.64% like dyads
COUPLE
99.21% like dyads
DUO
99.03% like dyads
DUET
98.97% like dyads
BRACE
98.54% like dyads
SPAN
98.34% like dyads
YOKE
98.32% like dyads
COUPLES
0.31% like dyads
PAIRS
0.31% like dyads
MONOZYGOTIC
0.31% like dyads
PROBAND
0.31% like dyads
MONOZYGOTIC TWIN
0.31% like dyads
ASSORTATIVE MATING
0.31% like dyads
HOMOZYGOSITY
0.31% like dyads
ATOPIC
0.31% like dyads
LEYDIG CELL
0.31% like dyads
DEHYDROGENASES
0.31% like dyads
HEXOSE
0.31% like dyads
MOSAICISM
0.31% like dyads
HETEROZYGOSITY
0.31% like dyads
METAPLASIA
0.31% like dyads
CYTOCHROME
0.31% like dyads
HOMOLOGOUS CHROMOSOMES
0.31% like dyads
SPINOUS
0.31% like dyads
TRANSMEMBRANE
0.31% like dyads
PENETRANCE
0.31% like dyads
RELATEDNESS
0.31% like dyads
ISOENZYMES
0.31% like dyads
IMMUNOGLOBULIN G
0.31% like dyads
OLIGOSACCHARIDE
0.31% like dyads
GYRUS
0.31% like dyads
MACACA MULATTA
0.31% like dyads
CONSANGUINEOUS
0.31% like dyads
AFFECTIVE DISORDER
0.31% like dyads
GRANULOCYTE
0.31% like dyads
AUTOSOMES
0.31% like dyads
CENTRIOLES
0.31% like dyads
HYPERSOMNIA
0.31% like dyads
PURKINJE CELL
0.31% like dyads
SUBFAMILIES
0.31% like dyads
ISOMERASE
0.31% like dyads
ENKEPHALIN
0.31% like dyads
PYRIMIDINES
0.31% like dyads
FLAVIN
0.31% like dyads
HETEROZYGOTE
0.31% like dyads
SERUM ALBUMIN
0.31% like dyads
MONOCYTIC
0.31% like dyads
CELLULARITY
0.31% like dyads
MANNOSE
0.31% like dyads
CYTIDINE
0.31% like dyads
EICOSANOID
0.31% like dyads
HMG
0.31% like dyads
ROSTRAL
0.31% like dyads
AMINOTRANSFERASE
0.31% like dyads
MONONUCLEAR
0.31% like dyads
SACCHARIDE
0.31% like dyads
PRAIRIE VOLE
0.31% like dyads
REGRESSION COEFFICIENT
0.31% like dyads
TRIIODOTHYRONINE
0.31% like dyads
HYDROLASE
0.31% like dyads
UMBILICAL VEIN
0.31% like dyads
ANTERIOR PITUITARY
0.31% like dyads
GAMETOPHYTE
0.31% like dyads
HOMOLOGIES
0.31% like dyads
LATERALITY
0.31% like dyads
UNIPOLAR DEPRESSION
0.31% like dyads
HOMOZYGOTE
0.31% like dyads
ALLELES
0.31% like dyads
ADENOIDECTOMY
0.31% like dyads
AUTOSOMAL RECESSIVE DISEASE
0.31% like dyads
PARADOXUS
0.31% like dyads
MINERALOCORTICOID
0.31% like dyads
HEPATOMA
0.31% like dyads
OSTEOID
0.31% like dyads
DETRUSOR
0.31% like dyads
IMIPRAMINE
0.31% like dyads
FRU
0.31% like dyads
OSTEOCHONDROMA
0.31% like dyads
THIOL
0.31% like dyads
KARYOTYPE
0.31% like dyads
CHORDATE
0.31% like dyads
ORFS
0.31% like dyads
PARKINSONISM
0.31% like dyads
ESTRONE
0.31% like dyads
ENOLASE
0.31% like dyads
THYROTROPIN
0.31% like dyads
CARBOXYLATE
0.31% like dyads
LATERALISATION
0.31% like dyads
OSTEOBLAST
0.31% like dyads
ERYTHROCYTES
0.31% like dyads
STOICHIOMETRY
0.31% like dyads
STRIATED MUSCLE
0.31% like dyads
CORTICES
0.31% like dyads
NEPHRON
0.31% like dyads