斑

Formal or literary term

single part (of a whole); one detail; portion; spot

raccoon butterflyfish (Chaetodon lunula); moon butterflyfish

acoustic spot; acoustic spots; maculae acusticae

Colloquial

uneven temper; caprice; whim

tiger stripes

Nouns which may take the genitive case particle 'no'

white spot

はくはん only

bright spot; facula

はくはん only; Medicine

vitiligo; leukoderma; leukoma

Medicine

nevus; naevus; birthmark

red spots; erythema

Medicine

purpura; purple spot

zebra

Anatomy

macula; macula lutea; yellow spot

senile plaque; neuritic plaque; senile druse

chestnut tiger butterfly (Parantica sita)

Japanese dace (Tribolodon hakonensis)

color spotting; color irregularity; color spots

bloody spots

purple spot (on a plant)

monarch butterfly (Danaus plexippus)

Astronomy

(Jupiter's) Great Red Spot

water spot (e.g. dried on a dish after washing)

Medicine

erythema infectiosum; slapped cheek syndrome; fifth disease

Medicine

vitiligo; vitiligo vulgaris

Medicine

lupus erythematosus

Medicine

purpura