صدم

6 تَصَادَمَا ذ , (S, Mgh,) said of two men running, (Mgh,) and ↓ اِصْطَدَمَا, (S, Mgh, K, K,) said of two horsemen, (Mgh,) and of two stallion [camels], (TA,) They dashed themselves together, each against the other: (S, * TA, PS:) or they struck, or knocked, [ against ] each other; they collided; (K, * TA;) each of them struck with himself the other: (Mgh:) or both verbs, said of two horsemen, they smote each other, each of them with his weight and his sharpness or vigorousness or valiantness: (Msb:) [or they pushed, thrust, or repelled, each other: (see 1:)] and تصادموا they pushed, pressed, crowded, or thronged, together; or dashed, one against another; (M, K, TA; but in the M, only the inf. n. is mentioned;) like two ships in the sea. (TA.)