as·trom·e·try 
(ə-strŏmĭ-trē)
(ə-strŏmĭ-trē)n.
The precise measurement of the positions and motions of celestial bodies.
as′tro·metric (ăs′trō-mĕtrĭk), as′tro·metri·cal adj.
- inoculum
- inodorous
- inoffensive
- inoffensively
- inoffensiveness
- in on
- in one ear and out the other
- in one fell swoop
- in one same breath
- in (one's) blood
- in one's blood
- in (one's) bones
- in one's bones
- in (one's) book
- in one's book
- in (one's) cups
- in one's cups
- in (one's) heart of hearts
- in one's heart of hearts
- in (one's) own right
- in one's own right
- in (one's) pocket
- in one's pocket
- in (one's) tracks
- in one's tracks