Bible Dictionaries
Nisus

Webster's Dictionary

(1):

(n.) The contraction of the diaphragm and abdominal muscles to evacuate feces or urine.

(2):

(n.) A striving; an effort; a conatus.

(3):

(n.) The periodic procreative desire manifested in the spring by birds, etc.

Bibliography Information
Webster, Noah. Entry for 'Nisus'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​n/nisus.html. 1828.