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“rectigrade”
rectigrade (adjective), more rectigrade, most rectigrade
A reference to the movement forward in a straight line or course: Rectigrade motion can be seen in larvae having 16 legs which progress with a straight body as opposed to the geometrid moth larvae which show looping motions when they advance.
This entry is located in the following units:
grad-, -grade, -gred, -gree, -gress
(page 6)
recti-, rect-
(page 3)
regi-, reg-, rec-, rex-
(page 6)