Pronunciation guide: IPA symbols, stress and word endings

θ	thin	ð	this	ʃ	she	ʒ	measure
tʃ	church	dʒ	judge	ŋ	sing	j	yes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

ˈ main stress, before the stressed syllable: /ˈwɔːtə/ water · ˌ lighter (secondary) stress: /ˌʌndəˈstænd/ understand
ː a long vowel · (r) an r said only in accents that pronounce it (most American, Scottish, Irish)

-s / -es (plurals; he/she form of verbs): /s/ after voiceless sounds (cats), /z/ after voiced (dogs), /ɪz/ after s, z, sh, ch, j sounds (buses, watches). Spelling: -es after s, x, z, ch, sh; consonant + y → -ies (city → cities).
-ed (past): /t/ after voiceless sounds (walked), /d/ after voiced (played), /ɪd/ after t or d (wanted). Spelling: love → loved, stop → stopped, carry → carried.
-ing: make → making, run → running, see → seeing.
Irregular: go, went, gone · be, was, been · see, saw, seen · man → men · child → children · mouse → mice.
Older (King James) forms: -eth = -s (he loveth = he loves) · -est with “thou” (thou lovest) · spake = spoke.

biochemistry

/ˌbaɪəʊˈkɛmɪstɹi/ noun

Forms biochemistries

noun (uncountable) The chemistry of those compounds that occur in living organisms, and the processes that occur in their metabolism and catabolism; the study of such chemistry. “My aunt has a degree in biochemistry.”
noun (countable) The chemical characteristics of a particular living organism. “The biochemistries of fungal and bacterial cells are quite distinct.”
noun (countable) The biochemical activity associated with a particular chemical or condition. “Our study compared the biochemistries of epilepsy and Parkinson's.”

Etymology

Gr. life + E. chemistry.

Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “biochemistry”, CC BY-SA 4.0. Details