| Pi's follower | 17 |
| Pi ___, "Life of Pi" protagonist | 42 |
| Pi trailers | 11 |
| Pi Sigma separator | 18 |
| Pi r-squared for a circle | 25 |
| Pi r squared, for a circle | 26 |
| Pi preceder? | 12 |
| Pi preceder | 11 |
| Pi or phi | 9 |
| Pi opening? | 11 |
| Pi neighbor | 11 |
| Pi is often used to calculate it | 32 |
| Pi followers | 12 |
| Pi follower | 11 |
| Pi Day celebrant, perhaps | 25 |
| Pi chaser | 9 |
| Pi and others | 13 |
| PI | 2 |
| Phyte or plasm preceder | 23 |
| Physiques, slangily | 19 |
| Physiques, informally | 21 |
| Physiques, for short | 20 |
| Physiques, familiarly | 21 |
| Physiques, casually | 19 |
| Physiques, briefly | 18 |
| Physiques for short | 20 |
| Physiques | 9 |
| Physique, so to speak | 21 |
| Physique, slangily | 18 |
| Physique, loosely | 17 |
| Physique, informally | 20 |
| Physique, in slang | 18 |
| Physique, in gym lingo | 22 |
| Physique, in brief | 18 |
| Physique, for short | 19 |
| Physique, briefly | 17 |
| Physique briefly | 17 |
| Physique | 8 |
| Physiotherapist | 15 |
| Physiology Nobelist Walter Rudolf ___ | 37 |
| Physiologist who won a 1904 Nobel Prize | 39 |
| Physiologist Pavlov | 19 |
| Physiologist Mosso: 1846–1910 | 36 |
| Physiologist Ivan who worked with dogs | 38 |
| Physiologist Galvani | 20 |
| Physiologist François ___: 1783-1855 | 39 |
| Physiological weakness | 22 |
| Physiological thresholds | 24 |
| Physiological reaction | 22 |
| Physiological property | 22 |
| Physiological pentad | 20 |
| Physiological humor of old | 26 |
| Physiognomy | 11 |
| Physiognomies | 13 |
| Physics-lab device | 18 |
| Physics-class unit | 18 |
| Physics, for one: Abbr. | 23 |
| Physics, for one | 16 |
| Physics, e.g. | 13 |
| Physics work units | 18 |
| Physics word | 12 |
| Physics units also known as centigrays | 38 |
| Physics units | 13 |
| Physics unit that sounds like a gem | 35 |
| Physics unit that comes from the Greek word for "work" | 64 |
| Physics unit of measurement that's another unit of measurement spelled backwards | 84 |
| Physics unit equal to 10,000 gauss | 34 |
| Physics unit | 12 |
| Physics topic | 13 |
| Physics subject | 15 |
| Physics subj. | 13 |
| Physics student's deg. | 26 |
| Physics seminar? | 16 |
| Physics rule determined by Newton | 33 |
| Physics ratio | 13 |
| Physics prize of note | 21 |
| Physics principle regarding the transmission of light | 53 |
| Physics prefix | 14 |
| Physics preceder | 16 |
| Physics period | 14 |
| Physics particles | 17 |
| Physics particle with no strong force | 37 |
| Physics particle with an integral spin | 38 |
| Physics particle | 16 |
| Physics or rhythm prefix | 24 |
| Physics or chemistry: Abbr. | 27 |
| Physics or chemistry, e.g. | 26 |
| Physics or chemistry | 20 |
| Physics opening | 15 |
| Physics Nobelist: 1945 | 22 |
| Physics Nobelist: 1944 | 22 |
| Physics Nobelist: 1922 | 22 |
| Physics Nobelist: 1911 | 22 |
| Physics Nobelist Wolfgang | 25 |
| Physics Nobelist Victor who discovered cosmic radiation | 55 |
| Physics Nobelist the year after Einstein won | 44 |
| Physics Nobelist Stern and others | 33 |
| Physics Nobelist Sir C.V. ___ | 29 |
| Physics Nobelist Simon van der ___ | 34 |
| Physics Nobelist Simon van der -- | 33 |