h

mastery
UK /eɪt͡ʃ/ US [æɪt͡ʃ]nounadjcharacternumname

card 1 of 10 · synonym

Which word is closest in meaning to 'h' in this sentence?

Another instance: 2ʰ28ᵐ p. m., 10 micra; 3ʰ08ᵐ p. m., 0 micra; irrigated with water: 3ʰ09ᵐ p. m., 4 micra.