|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a chattering or flighty, light-headed person.|
|1.||biology an additional type specimen selected because of differences from the original type specimen, such as opposite sex or morphological details|
|2.||immunol any of the variant forms of a particular immunoglobulin found among members of the same species|
allotype al·lo·type (āl'ə-tīp')
Any of the genetically determined antigenic differences within a given class of immunoglobulin that occur among members of the same species.