underwing
Concealed lower wing
The underwing is the underside of a bird's or insect's wing, often differently colored than the upper surface.
Underwing moths display drab forewings that conceal brightly colored hindwings—revealed suddenly when threatened.
As an adjective, underwing describes things positioned beneath a wing: underwing fuel tanks, underwing missiles.
Having irregular color patches
- crypticObscure in meaning
- concealmentAct of hiding something
- patternRecurring arrangement or template
- countershadingCamouflage via tonal gradient
coloration · bark · disruptive · startle · predator · hindwing · reveal · contrast
Moth or butterfly young
- lepidopteraButterfly and moth order
- nocturnalActive during darkness
- antennaeSensory appendages on insects
- larvaeImmature metamorphosing creatures
pupa · chrysalis · scales · proboscis · nectar · metamorphosis · entomology · thorax
Aircraft's central structure
- fuel tankContainer for combustible liquid
- landing gearAircraft ground support apparatus
- wheel wellRecess housing a tire
- nacelleAircraft engine housing
flap · slat · spar · skin · rivet · maintenance · aileron · structural
mottled
Having irregular color patches
- crypticObscure in meaning
- concealmentAct of hiding something
- patternRecurring arrangement or template
countershading · coloration · bark · disruptive · startle · predator · hindwing · reveal · contrast · warning
caterpillar
Moth or butterfly young
- lepidopteraButterfly and moth order
- nocturnalActive during darkness
- antennaeSensory appendages on insects
larvae · pupa · chrysalis · scales · proboscis · nectar · metamorphosis · entomology · thorax · abdomen
fuselage
Aircraft's central structure
- fuel tankContainer for combustible liquid
- landing gearAircraft ground support apparatus
- wheel wellRecess housing a tire
nacelle · flap · slat · spar · skin · rivet · maintenance · aileron · structural · aerodynamic
plumage
Bird's complete feather coat
flight feathers · speculum · waterfowl · raptor · owl · waxwing · birding · ornithology · molt · preening
- mothsmoth, moths, luna moth, atlas moth, hawk moth
- wing partsaileron, flap, winglet, primaries, secondaries