| Answer | Crossword Clue |
|---|---|
| FUSELAGE | Central airplane portion |
| CORE | Central portion |
| umbrae | the dark central portion of a sunspot |
| umbral | the dark central portion of a sunspot |
| umbras | the dark central portion of a sunspot |
| penumbral | shaded region surrounding the dark central portion of a sunspot |
| quartered | a. (of an escutcheon) divided into four or more parts b. (of a cross) having the central square portion removed |
| cursors | The transparent slide engraved with a hairline that is part of a slide rule and is used for marking a point on the rule while bringing a point on the central sliding portion up to it |
