| Definition/Meaning | Word/Phrase |
|---|
| loose sleeveless outer garment made from aba cloth; worn by Arabs |
aba
|
| either of the passages in the outer ear from the auricle to the tympanic membrane |
acoustic meatus
,
auditory canal
,
auditory meatus
,
ear canal
,
external auditory canal
|
| blood vessel outer covering |
adventitia
|
| atmosphere and outer space considered as a whole |
aerospace
|
| nymphalid butterfly having angular notches on the outer edges of the forewings |
anglewing
|
| outer covering of an animal |
animal skin
|
| only a thin outer disk of the sun can be seen |
annular eclipse
|
| branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life |
astrobiology
,
exobiology
,
space biology
|
| all of the components of the organ of hearing including the outer and middle and inner ears |
auditory apparatus
|
| outer membrane covering an axon |
axolemma
|
| extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons |
Babinski
,
Babinski reflex
,
Babinski sign
|
| outer courtyard of a castle |
bailey
|
| outer defensive wall that surrounds the outer courtyard of a castle |
bailey
|
| craft capable of traveling in outer space; technically, a satellite around the sun |
ballistic capsule
,
spacecraft
,
space vehicle
|
| slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom |
beard worm
,
pogonophoran
|
| push button at an outer door that gives a ringing or buzzing signal when pushed |
bell
,
buzzer
,
doorbell
|
| low-growing Eurasian plant with yellow central disc flowers and pinkish-white outer ray flowers |
Bellis perennis
,
common daisy
,
English daisy
|
| gravitational field theorized to exist in outer space |
black hole
|
| medium to large deciduous timber tree of the eastern United States and southeastern Canada having dark outer bark and yellow inner bark used for tanning; broad five-lobed leaves are bristle-tipped |
black oak
,
quercitron
,
quercitron oak
,
Quercus velutina
,
yellow oak
|
| strip forming the outer edge of something |
border
|
