p to each, in each ((non-gloss definition|used in expressing ratios of units))
p (medicine) via (the), by (the), through (the) (qualifier|followed by Latin name for an orifice)
p in accordance with
r (neologism)they(qualifier|singular). (non-gloss definition|gender-neutral|Gender-neutral third-person singular subject pronoun, coordinate with gendered pronouns (term|he) and (term|she).)
r (neologism)them(qualifier|singular)(non-gloss definition|Gender-neutral third-person singular object pronoun, grammatically equivalent to the gendered (term|him) and (term|her).)
a (neologism) Belonging to per, their(qualifier|singular). (non-gloss definition|Gender-neutral third-person singular possessive adjective, coordinate with gendered (term|his) and (term|her).)