Word: 海马 (hǎimǎ) Traditional: 海馬 海马 dictionary entry hǎimǎ sea horse; hippocampus (abbr. for 海馬體|海马体[hai3 ma3 ti3]) Full dictionary entry for 海马 Example sentences using 海马 2 sentences, showing page 1 of 1. 海马爸爸会照顾小宝宝。 Hǎimǎ bàba huì zhàogu Xiǎobǎobǎo. A father seahorse takes care of the babies. 那只海马藏在海草里。 Nà zhī hǎimǎ cáng zài hǎicǎo lǐ. That seahorse is hiding in the seaweed.