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optical aberration
optical aberration
/ˈɒptɪkəl ˌæbəˈreɪʃən/
noun
An optical phenomenon resulting from the failure of a lens or mirror to produce a good image
(
aberration
,
optical aberration
,
distortion
)
an optical phenomenon resulting from the failure of a lens or mirror to produce a good image
sense of right and wrong
sense of right and wrong
/ˈsɛns ʌv raɪt ænd rɔːŋ/
noun
Motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions
(
moral sense
,
scruples
,
sense of right and wrong
,
conscience
)
motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions
His conscience urged him to make the right decision, even when it was difficult.
His conscience urged him to make the right decision, even when it was difficult.
homeroom
homeroom
/ˈhoʊmruːm/
noun
A classroom in which all students in a particular grade (or in a division of a grade) meet at certain times under the supervision of a teacher who takes attendance and does other administrative business
(
home room
,
homeroom
)
a classroom in which all students in a particular grade (or in a division of a grade) meet at certain times under the supervision of a teacher who takes attendance and does other administrative business
Nauru
Nauru
/nɑːˈruː/
noun
A small island in the central Pacific Ocean 2,800 miles to the southwest of Hawaii; in Micronesia to the west of the Gilbert Islands
(
Nauru
,
Nauru Island
,
Pleasant Island
)
a small island in the central Pacific Ocean 2,800 miles to the southwest of Hawaii; in Micronesia to the west of the Gilbert Islands
An island republic on Nauru Island; phosphate exports support the economy
(
Nauru
,
Republic of Nauru
)
an island republic on Nauru Island; phosphate exports support the economy
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