As nouns the difference between pullus and pullup
is that pullus is (zoology) a chick; a young bird in the downy stage while pullup is an exercise done for strengthening the arms and upper body, in which one lifts one's own weight while hanging from a bar.
pullus
English
Noun
(
pulli)
(zoology) A chick; a young bird in the downy stage.
(
Webster 1913)
----
pullup
English
Alternative forms
*pull-up
Noun
(
en noun)
An exercise done for strengthening the arms and upper body, in which one lifts one's own weight while hanging from a bar.